Home / 91,565.12-137,315.04-41,603.36

Finding the Fourth Proportional to 91,565.12, 137,315.04 and 41,603.36

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Solution

The fourth proportional to 91,565.12, 137,315.04 and 41,603.36 is: 62,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,565.12 : 137,315.04 = 41,603.36 : x
  2. Step 2: Convert to fraction form
    91,565.12/137,315.04 = 41,603.36/x
  3. Step 3: Cross multiply
    91,565.12x = 137,315.04 × 41,603.36
  4. Step 4: Simplify right side
    91,565.12x = 5,712,767,042.53
  5. Step 5: Solve for x
    x = 5,712,767,042.53/91,565.12
  6. Step 6: Final answer
    x = 62,390.21

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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.