Home / 40,737.64-61,116.04-12,656.28

Finding the Fourth Proportional to 40,737.64, 61,116.04 and 12,656.28

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Solution

The fourth proportional to 40,737.64, 61,116.04 and 12,656.28 is: 18,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,737.64 : 61,116.04 = 12,656.28 : x
  2. Step 2: Convert to fraction form
    40,737.64/61,116.04 = 12,656.28/x
  3. Step 3: Cross multiply
    40,737.64x = 61,116.04 × 12,656.28
  4. Step 4: Simplify right side
    40,737.64x = 773,501,714.73
  5. Step 5: Solve for x
    x = 773,501,714.73/40,737.64
  6. Step 6: Final answer
    x = 18,987.40

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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.