Home / 81,235.87-121,875.54-25,073.71

Finding the Fourth Proportional to 81,235.87, 121,875.54 and 25,073.71

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Solution

The fourth proportional to 81,235.87, 121,875.54 and 25,073.71 is: 37,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,235.87 : 121,875.54 = 25,073.71 : x
  2. Step 2: Convert to fraction form
    81,235.87/121,875.54 = 25,073.71/x
  3. Step 3: Cross multiply
    81,235.87x = 121,875.54 × 25,073.71
  4. Step 4: Simplify right side
    81,235.87x = 3,055,871,641.36
  5. Step 5: Solve for x
    x = 3,055,871,641.36/81,235.87
  6. Step 6: Final answer
    x = 37,617.27

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1.5x scale

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.