Home / 91,135.88-125,829.70-58,948.52

Finding the Fourth Proportional to 91,135.88, 125,829.70 and 58,948.52

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Solution

The fourth proportional to 91,135.88, 125,829.70 and 58,948.52 is: 81,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,135.88 : 125,829.70 = 58,948.52 : x
  2. Step 2: Convert to fraction form
    91,135.88/125,829.70 = 58,948.52/x
  3. Step 3: Cross multiply
    91,135.88x = 125,829.70 × 58,948.52
  4. Step 4: Simplify right side
    91,135.88x = 7,417,474,587.04
  5. Step 5: Solve for x
    x = 7,417,474,587.04/91,135.88
  6. Step 6: Final answer
    x = 81,389.18

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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.