Home / 56,715.12-85,066.18-15,165.36

Finding the Fourth Proportional to 56,715.12, 85,066.18 and 15,165.36

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Solution

The fourth proportional to 56,715.12, 85,066.18 and 15,165.36 is: 22,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.12 : 85,066.18 = 15,165.36 : x
  2. Step 2: Convert to fraction form
    56,715.12/85,066.18 = 15,165.36/x
  3. Step 3: Cross multiply
    56,715.12x = 85,066.18 × 15,165.36
  4. Step 4: Simplify right side
    56,715.12x = 1,290,059,243.52
  5. Step 5: Solve for x
    x = 1,290,059,243.52/56,715.12
  6. Step 6: Final answer
    x = 22,746.30

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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.