Home / 62,990.08-86,897.28-40,641.28

Finding the Fourth Proportional to 62,990.08, 86,897.28 and 40,641.28

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Solution

The fourth proportional to 62,990.08, 86,897.28 and 40,641.28 is: 56,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,990.08 : 86,897.28 = 40,641.28 : x
  2. Step 2: Convert to fraction form
    62,990.08/86,897.28 = 40,641.28/x
  3. Step 3: Cross multiply
    62,990.08x = 86,897.28 × 40,641.28
  4. Step 4: Simplify right side
    62,990.08x = 3,531,616,687.72
  5. Step 5: Solve for x
    x = 3,531,616,687.72/62,990.08
  6. Step 6: Final answer
    x = 56,066.24

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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.