Home / 42,778.98-64,155.39-15,070.50

Finding the Fourth Proportional to 42,778.98, 64,155.39 and 15,070.50

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Solution

The fourth proportional to 42,778.98, 64,155.39 and 15,070.50 is: 22,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,778.98 : 64,155.39 = 15,070.50 : x
  2. Step 2: Convert to fraction form
    42,778.98/64,155.39 = 15,070.50/x
  3. Step 3: Cross multiply
    42,778.98x = 64,155.39 × 15,070.50
  4. Step 4: Simplify right side
    42,778.98x = 966,853,805.00
  5. Step 5: Solve for x
    x = 966,853,805.00/42,778.98
  6. Step 6: Final answer
    x = 22,601.14

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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.