Home / 51,038.43-70,432.97-28,376.71

Finding the Fourth Proportional to 51,038.43, 70,432.97 and 28,376.71

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Solution

The fourth proportional to 51,038.43, 70,432.97 and 28,376.71 is: 39,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.43 : 70,432.97 = 28,376.71 : x
  2. Step 2: Convert to fraction form
    51,038.43/70,432.97 = 28,376.71/x
  3. Step 3: Cross multiply
    51,038.43x = 70,432.97 × 28,376.71
  4. Step 4: Simplify right side
    51,038.43x = 1,998,655,964.13
  5. Step 5: Solve for x
    x = 1,998,655,964.13/51,038.43
  6. Step 6: Final answer
    x = 39,159.82

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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.