Home / 90,927.86-136,413.25-28,598.36

Finding the Fourth Proportional to 90,927.86, 136,413.25 and 28,598.36

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Solution

The fourth proportional to 90,927.86, 136,413.25 and 28,598.36 is: 42,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,927.86 : 136,413.25 = 28,598.36 : x
  2. Step 2: Convert to fraction form
    90,927.86/136,413.25 = 28,598.36/x
  3. Step 3: Cross multiply
    90,927.86x = 136,413.25 × 28,598.36
  4. Step 4: Simplify right side
    90,927.86x = 3,901,194,478.71
  5. Step 5: Solve for x
    x = 3,901,194,478.71/90,927.86
  6. Step 6: Final answer
    x = 42,904.28

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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.