Home / 80,962.64-121,485.26-54,612.16

Finding the Fourth Proportional to 80,962.64, 121,485.26 and 54,612.16

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Solution

The fourth proportional to 80,962.64, 121,485.26 and 54,612.16 is: 81,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,962.64 : 121,485.26 = 54,612.16 : x
  2. Step 2: Convert to fraction form
    80,962.64/121,485.26 = 54,612.16/x
  3. Step 3: Cross multiply
    80,962.64x = 121,485.26 × 54,612.16
  4. Step 4: Simplify right side
    80,962.64x = 6,634,572,456.76
  5. Step 5: Solve for x
    x = 6,634,572,456.76/80,962.64
  6. Step 6: Final answer
    x = 81,946.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.