Home / 76,223.90-105,180.44-42,223.88

Finding the Fourth Proportional to 76,223.90, 105,180.44 and 42,223.88

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Solution

The fourth proportional to 76,223.90, 105,180.44 and 42,223.88 is: 58,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,223.90 : 105,180.44 = 42,223.88 : x
  2. Step 2: Convert to fraction form
    76,223.90/105,180.44 = 42,223.88/x
  3. Step 3: Cross multiply
    76,223.90x = 105,180.44 × 42,223.88
  4. Step 4: Simplify right side
    76,223.90x = 4,441,125,539.89
  5. Step 5: Solve for x
    x = 4,441,125,539.89/76,223.90
  6. Step 6: Final answer
    x = 58,264.22

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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.