Home / 79,248.16-118,871.04-19,277.20

Finding the Fourth Proportional to 79,248.16, 118,871.04 and 19,277.20

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Solution

The fourth proportional to 79,248.16, 118,871.04 and 19,277.20 is: 28,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,248.16 : 118,871.04 = 19,277.20 : x
  2. Step 2: Convert to fraction form
    79,248.16/118,871.04 = 19,277.20/x
  3. Step 3: Cross multiply
    79,248.16x = 118,871.04 × 19,277.20
  4. Step 4: Simplify right side
    79,248.16x = 2,291,500,812.29
  5. Step 5: Solve for x
    x = 2,291,500,812.29/79,248.16
  6. Step 6: Final answer
    x = 28,915.51

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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.