Home / 84,048.28-115,985.12-45,808.18

Finding the Fourth Proportional to 84,048.28, 115,985.12 and 45,808.18

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Solution

The fourth proportional to 84,048.28, 115,985.12 and 45,808.18 is: 63,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,048.28 : 115,985.12 = 45,808.18 : x
  2. Step 2: Convert to fraction form
    84,048.28/115,985.12 = 45,808.18/x
  3. Step 3: Cross multiply
    84,048.28x = 115,985.12 × 45,808.18
  4. Step 4: Simplify right side
    84,048.28x = 5,313,067,387.69
  5. Step 5: Solve for x
    x = 5,313,067,387.69/84,048.28
  6. Step 6: Final answer
    x = 63,214.47

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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.