Home / 61,923.80-92,831.70-42,138.20

Finding the Fourth Proportional to 61,923.80, 92,831.70 and 42,138.20

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Solution

The fourth proportional to 61,923.80, 92,831.70 and 42,138.20 is: 63,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,923.80 : 92,831.70 = 42,138.20 : x
  2. Step 2: Convert to fraction form
    61,923.80/92,831.70 = 42,138.20/x
  3. Step 3: Cross multiply
    61,923.80x = 92,831.70 × 42,138.20
  4. Step 4: Simplify right side
    61,923.80x = 3,911,760,740.94
  5. Step 5: Solve for x
    x = 3,911,760,740.94/61,923.80
  6. Step 6: Final answer
    x = 63,170.55

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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.