Home / 56,387.28-84,587.88-18,435.66

Finding the Fourth Proportional to 56,387.28, 84,587.88 and 18,435.66

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Solution

The fourth proportional to 56,387.28, 84,587.88 and 18,435.66 is: 27,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,387.28 : 84,587.88 = 18,435.66 : x
  2. Step 2: Convert to fraction form
    56,387.28/84,587.88 = 18,435.66/x
  3. Step 3: Cross multiply
    56,387.28x = 84,587.88 × 18,435.66
  4. Step 4: Simplify right side
    56,387.28x = 1,559,433,395.80
  5. Step 5: Solve for x
    x = 1,559,433,395.80/56,387.28
  6. Step 6: Final answer
    x = 27,655.77

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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.