Home / 72,869.61-100,387.76-69,506.42

Finding the Fourth Proportional to 72,869.61, 100,387.76 and 69,506.42

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Solution

The fourth proportional to 72,869.61, 100,387.76 and 69,506.42 is: 95,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,869.61 : 100,387.76 = 69,506.42 : x
  2. Step 2: Convert to fraction form
    72,869.61/100,387.76 = 69,506.42/x
  3. Step 3: Cross multiply
    72,869.61x = 100,387.76 × 69,506.42
  4. Step 4: Simplify right side
    72,869.61x = 6,977,592,959.95
  5. Step 5: Solve for x
    x = 6,977,592,959.95/72,869.61
  6. Step 6: Final answer
    x = 95,754.50

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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.