Home / 55,804.18-77,010.30-30,653.68

Finding the Fourth Proportional to 55,804.18, 77,010.30 and 30,653.68

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Solution

The fourth proportional to 55,804.18, 77,010.30 and 30,653.68 is: 42,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,804.18 : 77,010.30 = 30,653.68 : x
  2. Step 2: Convert to fraction form
    55,804.18/77,010.30 = 30,653.68/x
  3. Step 3: Cross multiply
    55,804.18x = 77,010.30 × 30,653.68
  4. Step 4: Simplify right side
    55,804.18x = 2,360,649,092.90
  5. Step 5: Solve for x
    x = 2,360,649,092.90/55,804.18
  6. Step 6: Final answer
    x = 42,302.37

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1.5x scale

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.