Home / 55,691,120.40-76,852,555.32-30,909,862.68

Finding the Fourth Proportional to 55,691,120.40, 76,852,555.32 and 30,909,862.68

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Solution

The fourth proportional to 55,691,120.40, 76,852,555.32 and 30,909,862.68 is: 42,654,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691,120.40 : 76,852,555.32 = 30,909,862.68 : x
  2. Step 2: Convert to fraction form
    55,691,120.40/76,852,555.32 = 30,909,862.68/x
  3. Step 3: Cross multiply
    55,691,120.40x = 76,852,555.32 × 30,909,862.68
  4. Step 4: Simplify right side
    55,691,120.40x = 2,375,501,931,548,303
  5. Step 5: Solve for x
    x = 2,375,501,931,548,303/55,691,120.40
  6. Step 6: Final answer
    x = 42,654,949.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.