Home / 90,139.01-124,402.65-52,413.26

Finding the Fourth Proportional to 90,139.01, 124,402.65 and 52,413.26

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Solution

The fourth proportional to 90,139.01, 124,402.65 and 52,413.26 is: 72,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,139.01 : 124,402.65 = 52,413.26 : x
  2. Step 2: Convert to fraction form
    90,139.01/124,402.65 = 52,413.26/x
  3. Step 3: Cross multiply
    90,139.01x = 124,402.65 × 52,413.26
  4. Step 4: Simplify right side
    90,139.01x = 6,520,348,439.14
  5. Step 5: Solve for x
    x = 6,520,348,439.14/90,139.01
  6. Step 6: Final answer
    x = 72,336.59

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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.