Home / 115,076-172,616.16-31,972.16

Finding the Fourth Proportional to 115,076, 172,616.16 and 31,972.16

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Solution

The fourth proportional to 115,076, 172,616.16 and 31,972.16 is: 47,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,076 : 172,616.16 = 31,972.16 : x
  2. Step 2: Convert to fraction form
    115,076/172,616.16 = 31,972.16/x
  3. Step 3: Cross multiply
    115,076x = 172,616.16 × 31,972.16
  4. Step 4: Simplify right side
    115,076x = 5,518,911,486.11
  5. Step 5: Solve for x
    x = 5,518,911,486.11/115,076
  6. Step 6: Final answer
    x = 47,958.84

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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.