Home / 42,589.16-58,740.90-40,077.80

Finding the Fourth Proportional to 42,589.16, 58,740.90 and 40,077.80

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Solution

The fourth proportional to 42,589.16, 58,740.90 and 40,077.80 is: 55,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,589.16 : 58,740.90 = 40,077.80 : x
  2. Step 2: Convert to fraction form
    42,589.16/58,740.90 = 40,077.80/x
  3. Step 3: Cross multiply
    42,589.16x = 58,740.90 × 40,077.80
  4. Step 4: Simplify right side
    42,589.16x = 2,354,206,042.02
  5. Step 5: Solve for x
    x = 2,354,206,042.02/42,589.16
  6. Step 6: Final answer
    x = 55,277.12

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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.