Home / 97,451.71-134,488.76-68,780.55

Finding the Fourth Proportional to 97,451.71, 134,488.76 and 68,780.55

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Solution

The fourth proportional to 97,451.71, 134,488.76 and 68,780.55 is: 94,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,451.71 : 134,488.76 = 68,780.55 : x
  2. Step 2: Convert to fraction form
    97,451.71/134,488.76 = 68,780.55/x
  3. Step 3: Cross multiply
    97,451.71x = 134,488.76 × 68,780.55
  4. Step 4: Simplify right side
    97,451.71x = 9,250,210,881.62
  5. Step 5: Solve for x
    x = 9,250,210,881.62/97,451.71
  6. Step 6: Final answer
    x = 94,920.97

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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.