Home / 76,888.62-106,116.78-45,070.20

Finding the Fourth Proportional to 76,888.62, 106,116.78 and 45,070.20

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Solution

The fourth proportional to 76,888.62, 106,116.78 and 45,070.20 is: 62,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,888.62 : 106,116.78 = 45,070.20 : x
  2. Step 2: Convert to fraction form
    76,888.62/106,116.78 = 45,070.20/x
  3. Step 3: Cross multiply
    76,888.62x = 106,116.78 × 45,070.20
  4. Step 4: Simplify right side
    76,888.62x = 4,782,704,497.96
  5. Step 5: Solve for x
    x = 4,782,704,497.96/76,888.62
  6. Step 6: Final answer
    x = 62,203.02

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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.