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Finding the Fourth Proportional to 70,641.88, 97,488.12 and 38,813.08

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Solution

The fourth proportional to 70,641.88, 97,488.12 and 38,813.08 is: 53,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.88 : 97,488.12 = 38,813.08 : x
  2. Step 2: Convert to fraction form
    70,641.88/97,488.12 = 38,813.08/x
  3. Step 3: Cross multiply
    70,641.88x = 97,488.12 × 38,813.08
  4. Step 4: Simplify right side
    70,641.88x = 3,783,814,200.61
  5. Step 5: Solve for x
    x = 3,783,814,200.61/70,641.88
  6. Step 6: Final answer
    x = 53,563.33

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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.