Home / 90,041.68-124,261.86-54,242.92

Finding the Fourth Proportional to 90,041.68, 124,261.86 and 54,242.92

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Solution

The fourth proportional to 90,041.68, 124,261.86 and 54,242.92 is: 74,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,041.68 : 124,261.86 = 54,242.92 : x
  2. Step 2: Convert to fraction form
    90,041.68/124,261.86 = 54,242.92/x
  3. Step 3: Cross multiply
    90,041.68x = 124,261.86 × 54,242.92
  4. Step 4: Simplify right side
    90,041.68x = 6,740,326,131.03
  5. Step 5: Solve for x
    x = 6,740,326,131.03/90,041.68
  6. Step 6: Final answer
    x = 74,857.85

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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.