Home / 76,920.12-106,159.50-44,647.83

Finding the Fourth Proportional to 76,920.12, 106,159.50 and 44,647.83

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Solution

The fourth proportional to 76,920.12, 106,159.50 and 44,647.83 is: 61,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,920.12 : 106,159.50 = 44,647.83 : x
  2. Step 2: Convert to fraction form
    76,920.12/106,159.50 = 44,647.83/x
  3. Step 3: Cross multiply
    76,920.12x = 106,159.50 × 44,647.83
  4. Step 4: Simplify right side
    76,920.12x = 4,739,791,308.89
  5. Step 5: Solve for x
    x = 4,739,791,308.89/76,920.12
  6. Step 6: Final answer
    x = 61,619.66

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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.