Home / 97,743.78-134,875.05-54,725.70

Finding the Fourth Proportional to 97,743.78, 134,875.05 and 54,725.70

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Solution

The fourth proportional to 97,743.78, 134,875.05 and 54,725.70 is: 75,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,743.78 : 134,875.05 = 54,725.70 : x
  2. Step 2: Convert to fraction form
    97,743.78/134,875.05 = 54,725.70/x
  3. Step 3: Cross multiply
    97,743.78x = 134,875.05 × 54,725.70
  4. Step 4: Simplify right side
    97,743.78x = 7,381,131,523.79
  5. Step 5: Solve for x
    x = 7,381,131,523.79/97,743.78
  6. Step 6: Final answer
    x = 75,515.10

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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.