Home / 90,376.40-124,728.18-50,103.20

Finding the Fourth Proportional to 90,376.40, 124,728.18 and 50,103.20

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Solution

The fourth proportional to 90,376.40, 124,728.18 and 50,103.20 is: 69,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,376.40 : 124,728.18 = 50,103.20 : x
  2. Step 2: Convert to fraction form
    90,376.40/124,728.18 = 50,103.20/x
  3. Step 3: Cross multiply
    90,376.40x = 124,728.18 × 50,103.20
  4. Step 4: Simplify right side
    90,376.40x = 6,249,280,948.18
  5. Step 5: Solve for x
    x = 6,249,280,948.18/90,376.40
  6. Step 6: Final answer
    x = 69,147.27

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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.