Home / 90,515.10-124,902.24-52,271.76

Finding the Fourth Proportional to 90,515.10, 124,902.24 and 52,271.76

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Solution

The fourth proportional to 90,515.10, 124,902.24 and 52,271.76 is: 72,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,515.10 : 124,902.24 = 52,271.76 : x
  2. Step 2: Convert to fraction form
    90,515.10/124,902.24 = 52,271.76/x
  3. Step 3: Cross multiply
    90,515.10x = 124,902.24 × 52,271.76
  4. Step 4: Simplify right side
    90,515.10x = 6,528,859,912.74
  5. Step 5: Solve for x
    x = 6,528,859,912.74/90,515.10
  6. Step 6: Final answer
    x = 72,130.06

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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.