Home / 81,289.76-112,184.22-45,477.62

Finding the Fourth Proportional to 81,289.76, 112,184.22 and 45,477.62

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Solution

The fourth proportional to 81,289.76, 112,184.22 and 45,477.62 is: 62,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.76 : 112,184.22 = 45,477.62 : x
  2. Step 2: Convert to fraction form
    81,289.76/112,184.22 = 45,477.62/x
  3. Step 3: Cross multiply
    81,289.76x = 112,184.22 × 45,477.62
  4. Step 4: Simplify right side
    81,289.76x = 5,101,871,327.16
  5. Step 5: Solve for x
    x = 5,101,871,327.16/81,289.76
  6. Step 6: Final answer
    x = 62,761.55

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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.