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Finding the Fourth Proportional to 56,779.70, 85,169.55 and 52,502.90

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Solution

The fourth proportional to 56,779.70, 85,169.55 and 52,502.90 is: 78,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,779.70 : 85,169.55 = 52,502.90 : x
  2. Step 2: Convert to fraction form
    56,779.70/85,169.55 = 52,502.90/x
  3. Step 3: Cross multiply
    56,779.70x = 85,169.55 × 52,502.90
  4. Step 4: Simplify right side
    56,779.70x = 4,471,648,366.70
  5. Step 5: Solve for x
    x = 4,471,648,366.70/56,779.70
  6. Step 6: Final answer
    x = 78,754.35

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1.5x scale

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.