Home / 87,090.36-130,413.96-57,418.17

Finding the Fourth Proportional to 87,090.36, 130,413.96 and 57,418.17

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Solution

The fourth proportional to 87,090.36, 130,413.96 and 57,418.17 is: 85,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,090.36 : 130,413.96 = 57,418.17 : x
  2. Step 2: Convert to fraction form
    87,090.36/130,413.96 = 57,418.17/x
  3. Step 3: Cross multiply
    87,090.36x = 130,413.96 × 57,418.17
  4. Step 4: Simplify right side
    87,090.36x = 7,488,130,925.65
  5. Step 5: Solve for x
    x = 7,488,130,925.65/87,090.36
  6. Step 6: Final answer
    x = 85,981.17

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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.