Home / 91,426.64-126,168.12-51,140.24

Finding the Fourth Proportional to 91,426.64, 126,168.12 and 51,140.24

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Solution

The fourth proportional to 91,426.64, 126,168.12 and 51,140.24 is: 70,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,426.64 : 126,168.12 = 51,140.24 : x
  2. Step 2: Convert to fraction form
    91,426.64/126,168.12 = 51,140.24/x
  3. Step 3: Cross multiply
    91,426.64x = 126,168.12 × 51,140.24
  4. Step 4: Simplify right side
    91,426.64x = 6,452,267,937.15
  5. Step 5: Solve for x
    x = 6,452,267,937.15/91,426.64
  6. Step 6: Final answer
    x = 70,573.17

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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.