Home / 78,381.02-108,092.12-60,447.62

Finding the Fourth Proportional to 78,381.02, 108,092.12 and 60,447.62

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Solution

The fourth proportional to 78,381.02, 108,092.12 and 60,447.62 is: 83,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,381.02 : 108,092.12 = 60,447.62 : x
  2. Step 2: Convert to fraction form
    78,381.02/108,092.12 = 60,447.62/x
  3. Step 3: Cross multiply
    78,381.02x = 108,092.12 × 60,447.62
  4. Step 4: Simplify right side
    78,381.02x = 6,533,911,394.75
  5. Step 5: Solve for x
    x = 6,533,911,394.75/78,381.02
  6. Step 6: Final answer
    x = 83,360.89

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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.