Home / 81,040.15-111,835.54-45,230.15

Finding the Fourth Proportional to 81,040.15, 111,835.54 and 45,230.15

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Solution

The fourth proportional to 81,040.15, 111,835.54 and 45,230.15 is: 62,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,040.15 : 111,835.54 = 45,230.15 : x
  2. Step 2: Convert to fraction form
    81,040.15/111,835.54 = 45,230.15/x
  3. Step 3: Cross multiply
    81,040.15x = 111,835.54 × 45,230.15
  4. Step 4: Simplify right side
    81,040.15x = 5,058,337,702.16
  5. Step 5: Solve for x
    x = 5,058,337,702.16/81,040.15
  6. Step 6: Final answer
    x = 62,417.68

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1.5x scale

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.