Home / 55,897.33-77,137.53-30,403.12

Finding the Fourth Proportional to 55,897.33, 77,137.53 and 30,403.12

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Solution

The fourth proportional to 55,897.33, 77,137.53 and 30,403.12 is: 41,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,897.33 : 77,137.53 = 30,403.12 : x
  2. Step 2: Convert to fraction form
    55,897.33/77,137.53 = 30,403.12/x
  3. Step 3: Cross multiply
    55,897.33x = 77,137.53 × 30,403.12
  4. Step 4: Simplify right side
    55,897.33x = 2,345,221,581.09
  5. Step 5: Solve for x
    x = 2,345,221,581.09/55,897.33
  6. Step 6: Final answer
    x = 41,955.88

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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.