Home / 84,537.90-126,831.54-37,779.84

Finding the Fourth Proportional to 84,537.90, 126,831.54 and 37,779.84

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Solution

The fourth proportional to 84,537.90, 126,831.54 and 37,779.84 is: 56,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,537.90 : 126,831.54 = 37,779.84 : x
  2. Step 2: Convert to fraction form
    84,537.90/126,831.54 = 37,779.84/x
  3. Step 3: Cross multiply
    84,537.90x = 126,831.54 × 37,779.84
  4. Step 4: Simplify right side
    84,537.90x = 4,791,675,288.15
  5. Step 5: Solve for x
    x = 4,791,675,288.15/84,537.90
  6. Step 6: Final answer
    x = 56,680.79

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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.