Home / 98,649.44-136,149.56-55,637.76

Finding the Fourth Proportional to 98,649.44, 136,149.56 and 55,637.76

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Solution

The fourth proportional to 98,649.44, 136,149.56 and 55,637.76 is: 76,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,649.44 : 136,149.56 = 55,637.76 : x
  2. Step 2: Convert to fraction form
    98,649.44/136,149.56 = 55,637.76/x
  3. Step 3: Cross multiply
    98,649.44x = 136,149.56 × 55,637.76
  4. Step 4: Simplify right side
    98,649.44x = 7,575,056,984.40
  5. Step 5: Solve for x
    x = 7,575,056,984.40/98,649.44
  6. Step 6: Final answer
    x = 76,787.63

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1.5x scale

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.