Home / 61,129.28-91,686.12-23,663.72

Finding the Fourth Proportional to 61,129.28, 91,686.12 and 23,663.72

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Solution

The fourth proportional to 61,129.28, 91,686.12 and 23,663.72 is: 35,492.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.28 : 91,686.12 = 23,663.72 : x
  2. Step 2: Convert to fraction form
    61,129.28/91,686.12 = 23,663.72/x
  3. Step 3: Cross multiply
    61,129.28x = 91,686.12 × 23,663.72
  4. Step 4: Simplify right side
    61,129.28x = 2,169,634,429.42
  5. Step 5: Solve for x
    x = 2,169,634,429.42/61,129.28
  6. Step 6: Final answer
    x = 35,492.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.