Home / 90,525.84-124,926.50-54,739.78

Finding the Fourth Proportional to 90,525.84, 124,926.50 and 54,739.78

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Solution

The fourth proportional to 90,525.84, 124,926.50 and 54,739.78 is: 75,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,525.84 : 124,926.50 = 54,739.78 : x
  2. Step 2: Convert to fraction form
    90,525.84/124,926.50 = 54,739.78/x
  3. Step 3: Cross multiply
    90,525.84x = 124,926.50 × 54,739.78
  4. Step 4: Simplify right side
    90,525.84x = 6,838,449,126.17
  5. Step 5: Solve for x
    x = 6,838,449,126.17/90,525.84
  6. Step 6: Final answer
    x = 75,541.40

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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.