Home / 90,763.59-136,003.14-57,413.21

Finding the Fourth Proportional to 90,763.59, 136,003.14 and 57,413.21

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Solution

The fourth proportional to 90,763.59, 136,003.14 and 57,413.21 is: 86,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.59 : 136,003.14 = 57,413.21 : x
  2. Step 2: Convert to fraction form
    90,763.59/136,003.14 = 57,413.21/x
  3. Step 3: Cross multiply
    90,763.59x = 136,003.14 × 57,413.21
  4. Step 4: Simplify right side
    90,763.59x = 7,808,376,157.46
  5. Step 5: Solve for x
    x = 7,808,376,157.46/90,763.59
  6. Step 6: Final answer
    x = 86,029.83

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1.5x scale

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.