Home / 90,122.40-124,366.56-49,835.04

Finding the Fourth Proportional to 90,122.40, 124,366.56 and 49,835.04

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Solution

The fourth proportional to 90,122.40, 124,366.56 and 49,835.04 is: 68,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,122.40 : 124,366.56 = 49,835.04 : x
  2. Step 2: Convert to fraction form
    90,122.40/124,366.56 = 49,835.04/x
  3. Step 3: Cross multiply
    90,122.40x = 124,366.56 × 49,835.04
  4. Step 4: Simplify right side
    90,122.40x = 6,197,812,492.26
  5. Step 5: Solve for x
    x = 6,197,812,492.26/90,122.40
  6. Step 6: Final answer
    x = 68,771.05

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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.