Home / 42,133.95-58,168.20-28,724.91

Finding the Fourth Proportional to 42,133.95, 58,168.20 and 28,724.91

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Solution

The fourth proportional to 42,133.95, 58,168.20 and 28,724.91 is: 39,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,133.95 : 58,168.20 = 28,724.91 : x
  2. Step 2: Convert to fraction form
    42,133.95/58,168.20 = 28,724.91/x
  3. Step 3: Cross multiply
    42,133.95x = 58,168.20 × 28,724.91
  4. Step 4: Simplify right side
    42,133.95x = 1,670,876,199.45
  5. Step 5: Solve for x
    x = 1,670,876,199.45/42,133.95
  6. Step 6: Final answer
    x = 39,656.29

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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.