Home / 75,069.24-103,680.59-51,154.40

Finding the Fourth Proportional to 75,069.24, 103,680.59 and 51,154.40

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Solution

The fourth proportional to 75,069.24, 103,680.59 and 51,154.40 is: 70,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,069.24 : 103,680.59 = 51,154.40 : x
  2. Step 2: Convert to fraction form
    75,069.24/103,680.59 = 51,154.40/x
  3. Step 3: Cross multiply
    75,069.24x = 103,680.59 × 51,154.40
  4. Step 4: Simplify right side
    75,069.24x = 5,303,718,373.10
  5. Step 5: Solve for x
    x = 5,303,718,373.10/75,069.24
  6. Step 6: Final answer
    x = 70,651.02

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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.