Home / 90,217.36-124,499.04-49,931.20

Finding the Fourth Proportional to 90,217.36, 124,499.04 and 49,931.20

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Solution

The fourth proportional to 90,217.36, 124,499.04 and 49,931.20 is: 68,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.36 : 124,499.04 = 49,931.20 : x
  2. Step 2: Convert to fraction form
    90,217.36/124,499.04 = 49,931.20/x
  3. Step 3: Cross multiply
    90,217.36x = 124,499.04 × 49,931.20
  4. Step 4: Simplify right side
    90,217.36x = 6,216,386,466.05
  5. Step 5: Solve for x
    x = 6,216,386,466.05/90,217.36
  6. Step 6: Final answer
    x = 68,904.55

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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.