Home / 42,445.70-63,668.55-38,816.90

Finding the Fourth Proportional to 42,445.70, 63,668.55 and 38,816.90

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Solution

The fourth proportional to 42,445.70, 63,668.55 and 38,816.90 is: 58,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.70 : 63,668.55 = 38,816.90 : x
  2. Step 2: Convert to fraction form
    42,445.70/63,668.55 = 38,816.90/x
  3. Step 3: Cross multiply
    42,445.70x = 63,668.55 × 38,816.90
  4. Step 4: Simplify right side
    42,445.70x = 2,471,415,738.50
  5. Step 5: Solve for x
    x = 2,471,415,738.50/42,445.70
  6. Step 6: Final answer
    x = 58,225.35

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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.