Home / 67,280.94-100,788.57-39,130.20

Finding the Fourth Proportional to 67,280.94, 100,788.57 and 39,130.20

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Solution

The fourth proportional to 67,280.94, 100,788.57 and 39,130.20 is: 58,618.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,280.94 : 100,788.57 = 39,130.20 : x
  2. Step 2: Convert to fraction form
    67,280.94/100,788.57 = 39,130.20/x
  3. Step 3: Cross multiply
    67,280.94x = 100,788.57 × 39,130.20
  4. Step 4: Simplify right side
    67,280.94x = 3,943,876,901.81
  5. Step 5: Solve for x
    x = 3,943,876,901.81/67,280.94
  6. Step 6: Final answer
    x = 58,618.04

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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.