Home / 45,116.66-67,686.71-13,525.45

Finding the Fourth Proportional to 45,116.66, 67,686.71 and 13,525.45

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Solution

The fourth proportional to 45,116.66, 67,686.71 and 13,525.45 is: 20,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,116.66 : 67,686.71 = 13,525.45 : x
  2. Step 2: Convert to fraction form
    45,116.66/67,686.71 = 13,525.45/x
  3. Step 3: Cross multiply
    45,116.66x = 67,686.71 × 13,525.45
  4. Step 4: Simplify right side
    45,116.66x = 915,492,974.93
  5. Step 5: Solve for x
    x = 915,492,974.93/45,116.66
  6. Step 6: Final answer
    x = 20,291.68

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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.