Home / 42,125.15-58,209.69-40,075.04

Finding the Fourth Proportional to 42,125.15, 58,209.69 and 40,075.04

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Solution

The fourth proportional to 42,125.15, 58,209.69 and 40,075.04 is: 55,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.15 : 58,209.69 = 40,075.04 : x
  2. Step 2: Convert to fraction form
    42,125.15/58,209.69 = 40,075.04/x
  3. Step 3: Cross multiply
    42,125.15x = 58,209.69 × 40,075.04
  4. Step 4: Simplify right side
    42,125.15x = 2,332,755,364.09
  5. Step 5: Solve for x
    x = 2,332,755,364.09/42,125.15
  6. Step 6: Final answer
    x = 55,376.79

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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.