Home / 87,062.64-120,145.32-51,254.16

Finding the Fourth Proportional to 87,062.64, 120,145.32 and 51,254.16

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Solution

The fourth proportional to 87,062.64, 120,145.32 and 51,254.16 is: 70,730.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,062.64 : 120,145.32 = 51,254.16 : x
  2. Step 2: Convert to fraction form
    87,062.64/120,145.32 = 51,254.16/x
  3. Step 3: Cross multiply
    87,062.64x = 120,145.32 × 51,254.16
  4. Step 4: Simplify right side
    87,062.64x = 6,157,947,454.53
  5. Step 5: Solve for x
    x = 6,157,947,454.53/87,062.64
  6. Step 6: Final answer
    x = 70,730.08

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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.