Home / 90,528.35-124,929.95-54,742.28

Finding the Fourth Proportional to 90,528.35, 124,929.95 and 54,742.28

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Solution

The fourth proportional to 90,528.35, 124,929.95 and 54,742.28 is: 75,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,528.35 : 124,929.95 = 54,742.28 : x
  2. Step 2: Convert to fraction form
    90,528.35/124,929.95 = 54,742.28/x
  3. Step 3: Cross multiply
    90,528.35x = 124,929.95 × 54,742.28
  4. Step 4: Simplify right side
    90,528.35x = 6,838,949,404.92
  5. Step 5: Solve for x
    x = 6,838,949,404.92/90,528.35
  6. Step 6: Final answer
    x = 75,544.84

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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.