Home / 47,112.72-64,988.48-29,418

Finding the Fourth Proportional to 47,112.72, 64,988.48 and 29,418

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Solution

The fourth proportional to 47,112.72, 64,988.48 and 29,418 is: 40,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,112.72 : 64,988.48 = 29,418 : x
  2. Step 2: Convert to fraction form
    47,112.72/64,988.48 = 29,418/x
  3. Step 3: Cross multiply
    47,112.72x = 64,988.48 × 29,418
  4. Step 4: Simplify right side
    47,112.72x = 1,911,831,104.64
  5. Step 5: Solve for x
    x = 1,911,831,104.64/47,112.72
  6. Step 6: Final answer
    x = 40,579.93

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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.