Home / 70,939.60-97,897.24-39,107.76

Finding the Fourth Proportional to 70,939.60, 97,897.24 and 39,107.76

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Solution

The fourth proportional to 70,939.60, 97,897.24 and 39,107.76 is: 53,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.60 : 97,897.24 = 39,107.76 : x
  2. Step 2: Convert to fraction form
    70,939.60/97,897.24 = 39,107.76/x
  3. Step 3: Cross multiply
    70,939.60x = 97,897.24 × 39,107.76
  4. Step 4: Simplify right side
    70,939.60x = 3,828,541,766.58
  5. Step 5: Solve for x
    x = 3,828,541,766.58/70,939.60
  6. Step 6: Final answer
    x = 53,969.04

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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.