Home / 47,979.68-72,031.88-36,894.15

Finding the Fourth Proportional to 47,979.68, 72,031.88 and 36,894.15

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Solution

The fourth proportional to 47,979.68, 72,031.88 and 36,894.15 is: 55,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.68 : 72,031.88 = 36,894.15 : x
  2. Step 2: Convert to fraction form
    47,979.68/72,031.88 = 36,894.15/x
  3. Step 3: Cross multiply
    47,979.68x = 72,031.88 × 36,894.15
  4. Step 4: Simplify right side
    47,979.68x = 2,657,555,077.74
  5. Step 5: Solve for x
    x = 2,657,555,077.74/47,979.68
  6. Step 6: Final answer
    x = 55,389.18

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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.