Home / 81,038.07-111,823.13-45,226.86

Finding the Fourth Proportional to 81,038.07, 111,823.13 and 45,226.86

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Solution

The fourth proportional to 81,038.07, 111,823.13 and 45,226.86 is: 62,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,038.07 : 111,823.13 = 45,226.86 : x
  2. Step 2: Convert to fraction form
    81,038.07/111,823.13 = 45,226.86/x
  3. Step 3: Cross multiply
    81,038.07x = 111,823.13 × 45,226.86
  4. Step 4: Simplify right side
    81,038.07x = 5,057,408,739.00
  5. Step 5: Solve for x
    x = 5,057,408,739.00/81,038.07
  6. Step 6: Final answer
    x = 62,407.81

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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.