Home / 90,002.10-124,200.63-49,712.70

Finding the Fourth Proportional to 90,002.10, 124,200.63 and 49,712.70

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Solution

The fourth proportional to 90,002.10, 124,200.63 and 49,712.70 is: 68,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,002.10 : 124,200.63 = 49,712.70 : x
  2. Step 2: Convert to fraction form
    90,002.10/124,200.63 = 49,712.70/x
  3. Step 3: Cross multiply
    90,002.10x = 124,200.63 × 49,712.70
  4. Step 4: Simplify right side
    90,002.10x = 6,174,348,659.00
  5. Step 5: Solve for x
    x = 6,174,348,659.00/90,002.10
  6. Step 6: Final answer
    x = 68,602.27

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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.