Home / 91,065.18-136,391.49-48,871.74

Finding the Fourth Proportional to 91,065.18, 136,391.49 and 48,871.74

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Solution

The fourth proportional to 91,065.18, 136,391.49 and 48,871.74 is: 73,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,065.18 : 136,391.49 = 48,871.74 : x
  2. Step 2: Convert to fraction form
    91,065.18/136,391.49 = 48,871.74/x
  3. Step 3: Cross multiply
    91,065.18x = 136,391.49 × 48,871.74
  4. Step 4: Simplify right side
    91,065.18x = 6,665,689,437.49
  5. Step 5: Solve for x
    x = 6,665,689,437.49/91,065.18
  6. Step 6: Final answer
    x = 73,196.91

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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.