Home / 81,323.13-112,226.48-45,516.45

Finding the Fourth Proportional to 81,323.13, 112,226.48 and 45,516.45

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Solution

The fourth proportional to 81,323.13, 112,226.48 and 45,516.45 is: 62,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,323.13 : 112,226.48 = 45,516.45 : x
  2. Step 2: Convert to fraction form
    81,323.13/112,226.48 = 45,516.45/x
  3. Step 3: Cross multiply
    81,323.13x = 112,226.48 × 45,516.45
  4. Step 4: Simplify right side
    81,323.13x = 5,108,150,965.60
  5. Step 5: Solve for x
    x = 5,108,150,965.60/81,323.13
  6. Step 6: Final answer
    x = 62,813.01

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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.