Home / 68,438.61-94,443.36-38,223.06

Finding the Fourth Proportional to 68,438.61, 94,443.36 and 38,223.06

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Solution

The fourth proportional to 68,438.61, 94,443.36 and 38,223.06 is: 52,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438.61 : 94,443.36 = 38,223.06 : x
  2. Step 2: Convert to fraction form
    68,438.61/94,443.36 = 38,223.06/x
  3. Step 3: Cross multiply
    68,438.61x = 94,443.36 × 38,223.06
  4. Step 4: Simplify right side
    68,438.61x = 3,609,914,215.88
  5. Step 5: Solve for x
    x = 3,609,914,215.88/68,438.61
  6. Step 6: Final answer
    x = 52,746.75

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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.