Home / 51,031.17-70,423.39-28,061.39

Finding the Fourth Proportional to 51,031.17, 70,423.39 and 28,061.39

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Solution

The fourth proportional to 51,031.17, 70,423.39 and 28,061.39 is: 38,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.17 : 70,423.39 = 28,061.39 : x
  2. Step 2: Convert to fraction form
    51,031.17/70,423.39 = 28,061.39/x
  3. Step 3: Cross multiply
    51,031.17x = 70,423.39 × 28,061.39
  4. Step 4: Simplify right side
    51,031.17x = 1,976,178,211.91
  5. Step 5: Solve for x
    x = 1,976,178,211.91/51,031.17
  6. Step 6: Final answer
    x = 38,724.92

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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.