Home / 81,338.02-112,251.45-45,530.26

Finding the Fourth Proportional to 81,338.02, 112,251.45 and 45,530.26

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Solution

The fourth proportional to 81,338.02, 112,251.45 and 45,530.26 is: 62,834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.02 : 112,251.45 = 45,530.26 : x
  2. Step 2: Convert to fraction form
    81,338.02/112,251.45 = 45,530.26/x
  3. Step 3: Cross multiply
    81,338.02x = 112,251.45 × 45,530.26
  4. Step 4: Simplify right side
    81,338.02x = 5,110,837,703.88
  5. Step 5: Solve for x
    x = 5,110,837,703.88/81,338.02
  6. Step 6: Final answer
    x = 62,834.55

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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.