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Finding the Fourth Proportional to 45,585, 62,909.76 and 26,728.20

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Solution

The fourth proportional to 45,585, 62,909.76 and 26,728.20 is: 36,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,585 : 62,909.76 = 26,728.20 : x
  2. Step 2: Convert to fraction form
    45,585/62,909.76 = 26,728.20/x
  3. Step 3: Cross multiply
    45,585x = 62,909.76 × 26,728.20
  4. Step 4: Simplify right side
    45,585x = 1,681,464,647.23
  5. Step 5: Solve for x
    x = 1,681,464,647.23/45,585
  6. Step 6: Final answer
    x = 36,886.36

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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.