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Finding the Fourth Proportional to 72,592.85, 100,160.60 and 42,360.91

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Solution

The fourth proportional to 72,592.85, 100,160.60 and 42,360.91 is: 58,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.85 : 100,160.60 = 42,360.91 : x
  2. Step 2: Convert to fraction form
    72,592.85/100,160.60 = 42,360.91/x
  3. Step 3: Cross multiply
    72,592.85x = 100,160.60 × 42,360.91
  4. Step 4: Simplify right side
    72,592.85x = 4,242,893,699.94
  5. Step 5: Solve for x
    x = 4,242,893,699.94/72,592.85
  6. Step 6: Final answer
    x = 58,447.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.