Home / 70,715.10-97,591.05-38,886.42

Finding the Fourth Proportional to 70,715.10, 97,591.05 and 38,886.42

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Solution

The fourth proportional to 70,715.10, 97,591.05 and 38,886.42 is: 53,665.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,715.10 : 97,591.05 = 38,886.42 : x
  2. Step 2: Convert to fraction form
    70,715.10/97,591.05 = 38,886.42/x
  3. Step 3: Cross multiply
    70,715.10x = 97,591.05 × 38,886.42
  4. Step 4: Simplify right side
    70,715.10x = 3,794,966,558.54
  5. Step 5: Solve for x
    x = 3,794,966,558.54/70,715.10
  6. Step 6: Final answer
    x = 53,665.58

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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.