Home / 91,154.09-136,671.80-37,831.38

Finding the Fourth Proportional to 91,154.09, 136,671.80 and 37,831.38

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Solution

The fourth proportional to 91,154.09, 136,671.80 and 37,831.38 is: 56,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,154.09 : 136,671.80 = 37,831.38 : x
  2. Step 2: Convert to fraction form
    91,154.09/136,671.80 = 37,831.38/x
  3. Step 3: Cross multiply
    91,154.09x = 136,671.80 × 37,831.38
  4. Step 4: Simplify right side
    91,154.09x = 5,170,482,611.93
  5. Step 5: Solve for x
    x = 5,170,482,611.93/91,154.09
  6. Step 6: Final answer
    x = 56,722.45

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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.