Home / 87,130.27-120,307.50-66,955.33

Finding the Fourth Proportional to 87,130.27, 120,307.50 and 66,955.33

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Solution

The fourth proportional to 87,130.27, 120,307.50 and 66,955.33 is: 92,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.27 : 120,307.50 = 66,955.33 : x
  2. Step 2: Convert to fraction form
    87,130.27/120,307.50 = 66,955.33/x
  3. Step 3: Cross multiply
    87,130.27x = 120,307.50 × 66,955.33
  4. Step 4: Simplify right side
    87,130.27x = 8,055,227,427.66
  5. Step 5: Solve for x
    x = 8,055,227,427.66/87,130.27
  6. Step 6: Final answer
    x = 92,450.40

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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.