Home / 42,778.73-64,155.02-15,070.25

Finding the Fourth Proportional to 42,778.73, 64,155.02 and 15,070.25

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Solution

The fourth proportional to 42,778.73, 64,155.02 and 15,070.25 is: 22,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,778.73 : 64,155.02 = 15,070.25 : x
  2. Step 2: Convert to fraction form
    42,778.73/64,155.02 = 15,070.25/x
  3. Step 3: Cross multiply
    42,778.73x = 64,155.02 × 15,070.25
  4. Step 4: Simplify right side
    42,778.73x = 966,832,114.80
  5. Step 5: Solve for x
    x = 966,832,114.80/42,778.73
  6. Step 6: Final answer
    x = 22,600.77

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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.