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Finding the Fourth Proportional to 71,341.71, 107,013.78 and 26,989.35

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Solution

The fourth proportional to 71,341.71, 107,013.78 and 26,989.35 is: 40,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.71 : 107,013.78 = 26,989.35 : x
  2. Step 2: Convert to fraction form
    71,341.71/107,013.78 = 26,989.35/x
  3. Step 3: Cross multiply
    71,341.71x = 107,013.78 × 26,989.35
  4. Step 4: Simplify right side
    71,341.71x = 2,888,232,363.24
  5. Step 5: Solve for x
    x = 2,888,232,363.24/71,341.71
  6. Step 6: Final answer
    x = 40,484.48

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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.