Home / 56,259.17-84,397.15-20,717.76

Finding the Fourth Proportional to 56,259.17, 84,397.15 and 20,717.76

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Solution

The fourth proportional to 56,259.17, 84,397.15 and 20,717.76 is: 31,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,259.17 : 84,397.15 = 20,717.76 : x
  2. Step 2: Convert to fraction form
    56,259.17/84,397.15 = 20,717.76/x
  3. Step 3: Cross multiply
    56,259.17x = 84,397.15 × 20,717.76
  4. Step 4: Simplify right side
    56,259.17x = 1,748,519,530.10
  5. Step 5: Solve for x
    x = 1,748,519,530.10/56,259.17
  6. Step 6: Final answer
    x = 31,079.72

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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.