Home / 56,778.20-85,167.30-52,501.40

Finding the Fourth Proportional to 56,778.20, 85,167.30 and 52,501.40

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Solution

The fourth proportional to 56,778.20, 85,167.30 and 52,501.40 is: 78,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,778.20 : 85,167.30 = 52,501.40 : x
  2. Step 2: Convert to fraction form
    56,778.20/85,167.30 = 52,501.40/x
  3. Step 3: Cross multiply
    56,778.20x = 85,167.30 × 52,501.40
  4. Step 4: Simplify right side
    56,778.20x = 4,471,402,484.22
  5. Step 5: Solve for x
    x = 4,471,402,484.22/56,778.20
  6. Step 6: Final answer
    x = 78,752.10

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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.