Home / 57,779.90-86,572.65-49,420.70

Finding the Fourth Proportional to 57,779.90, 86,572.65 and 49,420.70

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Solution

The fourth proportional to 57,779.90, 86,572.65 and 49,420.70 is: 74,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,779.90 : 86,572.65 = 49,420.70 : x
  2. Step 2: Convert to fraction form
    57,779.90/86,572.65 = 49,420.70/x
  3. Step 3: Cross multiply
    57,779.90x = 86,572.65 × 49,420.70
  4. Step 4: Simplify right side
    57,779.90x = 4,278,480,963.86
  5. Step 5: Solve for x
    x = 4,278,480,963.86/57,779.90
  6. Step 6: Final answer
    x = 74,047.91

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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.