Home / 55,642.76-76,787.02-30,492.26

Finding the Fourth Proportional to 55,642.76, 76,787.02 and 30,492.26

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Solution

The fourth proportional to 55,642.76, 76,787.02 and 30,492.26 is: 42,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.76 : 76,787.02 = 30,492.26 : x
  2. Step 2: Convert to fraction form
    55,642.76/76,787.02 = 30,492.26/x
  3. Step 3: Cross multiply
    55,642.76x = 76,787.02 × 30,492.26
  4. Step 4: Simplify right side
    55,642.76x = 2,341,409,778.47
  5. Step 5: Solve for x
    x = 2,341,409,778.47/55,642.76
  6. Step 6: Final answer
    x = 42,079.32

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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.