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Finding the Fourth Proportional to 61,400.80, 92,149.80 and 23,978.80

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Solution

The fourth proportional to 61,400.80, 92,149.80 and 23,978.80 is: 35,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,400.80 : 92,149.80 = 23,978.80 : x
  2. Step 2: Convert to fraction form
    61,400.80/92,149.80 = 23,978.80/x
  3. Step 3: Cross multiply
    61,400.80x = 92,149.80 × 23,978.80
  4. Step 4: Simplify right side
    61,400.80x = 2,209,641,624.24
  5. Step 5: Solve for x
    x = 2,209,641,624.24/61,400.80
  6. Step 6: Final answer
    x = 35,987.18

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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.