Home / 90,359.90-124,691.02-50,071.31

Finding the Fourth Proportional to 90,359.90, 124,691.02 and 50,071.31

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Solution

The fourth proportional to 90,359.90, 124,691.02 and 50,071.31 is: 69,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,359.90 : 124,691.02 = 50,071.31 : x
  2. Step 2: Convert to fraction form
    90,359.90/124,691.02 = 50,071.31/x
  3. Step 3: Cross multiply
    90,359.90x = 124,691.02 × 50,071.31
  4. Step 4: Simplify right side
    90,359.90x = 6,243,441,968.00
  5. Step 5: Solve for x
    x = 6,243,441,968.00/90,359.90
  6. Step 6: Final answer
    x = 69,095.28

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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.