Home / 81,233.13-112,129.95-55,823.64

Finding the Fourth Proportional to 81,233.13, 112,129.95 and 55,823.64

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Solution

The fourth proportional to 81,233.13, 112,129.95 and 55,823.64 is: 77,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,233.13 : 112,129.95 = 55,823.64 : x
  2. Step 2: Convert to fraction form
    81,233.13/112,129.95 = 55,823.64/x
  3. Step 3: Cross multiply
    81,233.13x = 112,129.95 × 55,823.64
  4. Step 4: Simplify right side
    81,233.13x = 6,259,501,962.02
  5. Step 5: Solve for x
    x = 6,259,501,962.02/81,233.13
  6. Step 6: Final answer
    x = 77,056.02

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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.