Home / 81,113.99-111,937.07-45,304.02

Finding the Fourth Proportional to 81,113.99, 111,937.07 and 45,304.02

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Solution

The fourth proportional to 81,113.99, 111,937.07 and 45,304.02 is: 62,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,113.99 : 111,937.07 = 45,304.02 : x
  2. Step 2: Convert to fraction form
    81,113.99/111,937.07 = 45,304.02/x
  3. Step 3: Cross multiply
    81,113.99x = 111,937.07 × 45,304.02
  4. Step 4: Simplify right side
    81,113.99x = 5,071,199,031.50
  5. Step 5: Solve for x
    x = 5,071,199,031.50/81,113.99
  6. Step 6: Final answer
    x = 62,519.42

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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.