Home / 90,055.46-124,272.66-51,812.12

Finding the Fourth Proportional to 90,055.46, 124,272.66 and 51,812.12

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Solution

The fourth proportional to 90,055.46, 124,272.66 and 51,812.12 is: 71,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,055.46 : 124,272.66 = 51,812.12 : x
  2. Step 2: Convert to fraction form
    90,055.46/124,272.66 = 51,812.12/x
  3. Step 3: Cross multiply
    90,055.46x = 124,272.66 × 51,812.12
  4. Step 4: Simplify right side
    90,055.46x = 6,438,829,972.64
  5. Step 5: Solve for x
    x = 6,438,829,972.64/90,055.46
  6. Step 6: Final answer
    x = 71,498.50

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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.