Home / 90,217.48-124,498.40-49,931.26

Finding the Fourth Proportional to 90,217.48, 124,498.40 and 49,931.26

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Solution

The fourth proportional to 90,217.48, 124,498.40 and 49,931.26 is: 68,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.48 : 124,498.40 = 49,931.26 : x
  2. Step 2: Convert to fraction form
    90,217.48/124,498.40 = 49,931.26/x
  3. Step 3: Cross multiply
    90,217.48x = 124,498.40 × 49,931.26
  4. Step 4: Simplify right side
    90,217.48x = 6,216,361,979.98
  5. Step 5: Solve for x
    x = 6,216,361,979.98/90,217.48
  6. Step 6: Final answer
    x = 68,904.19

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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.