Home / 42,181.28-63,140.16-28,152.80

Finding the Fourth Proportional to 42,181.28, 63,140.16 and 28,152.80

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Solution

The fourth proportional to 42,181.28, 63,140.16 and 28,152.80 is: 42,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,181.28 : 63,140.16 = 28,152.80 : x
  2. Step 2: Convert to fraction form
    42,181.28/63,140.16 = 28,152.80/x
  3. Step 3: Cross multiply
    42,181.28x = 63,140.16 × 28,152.80
  4. Step 4: Simplify right side
    42,181.28x = 1,777,572,296.45
  5. Step 5: Solve for x
    x = 1,777,572,296.45/42,181.28
  6. Step 6: Final answer
    x = 42,141.26

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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.