Home / 67,512.15-101,312.96-28,069.20

Finding the Fourth Proportional to 67,512.15, 101,312.96 and 28,069.20

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Solution

The fourth proportional to 67,512.15, 101,312.96 and 28,069.20 is: 42,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,512.15 : 101,312.96 = 28,069.20 : x
  2. Step 2: Convert to fraction form
    67,512.15/101,312.96 = 28,069.20/x
  3. Step 3: Cross multiply
    67,512.15x = 101,312.96 × 28,069.20
  4. Step 4: Simplify right side
    67,512.15x = 2,843,773,596.49
  5. Step 5: Solve for x
    x = 2,843,773,596.49/67,512.15
  6. Step 6: Final answer
    x = 42,122.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.