Home / 99,831.89-137,751.74-58,990.32

Finding the Fourth Proportional to 99,831.89, 137,751.74 and 58,990.32

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Solution

The fourth proportional to 99,831.89, 137,751.74 and 58,990.32 is: 81,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.89 : 137,751.74 = 58,990.32 : x
  2. Step 2: Convert to fraction form
    99,831.89/137,751.74 = 58,990.32/x
  3. Step 3: Cross multiply
    99,831.89x = 137,751.74 × 58,990.32
  4. Step 4: Simplify right side
    99,831.89x = 8,126,018,928.21
  5. Step 5: Solve for x
    x = 8,126,018,928.21/99,831.89
  6. Step 6: Final answer
    x = 81,397.03

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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.