Home / 91,254.36-125,990.28-81,677.64

Finding the Fourth Proportional to 91,254.36, 125,990.28 and 81,677.64

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Solution

The fourth proportional to 91,254.36, 125,990.28 and 81,677.64 is: 112,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,254.36 : 125,990.28 = 81,677.64 : x
  2. Step 2: Convert to fraction form
    91,254.36/125,990.28 = 81,677.64/x
  3. Step 3: Cross multiply
    91,254.36x = 125,990.28 × 81,677.64
  4. Step 4: Simplify right side
    91,254.36x = 10,290,588,733.34
  5. Step 5: Solve for x
    x = 10,290,588,733.34/91,254.36
  6. Step 6: Final answer
    x = 112,768.19

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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.