Home / 76,551.12-105,642.36-42,560.64

Finding the Fourth Proportional to 76,551.12, 105,642.36 and 42,560.64

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Solution

The fourth proportional to 76,551.12, 105,642.36 and 42,560.64 is: 58,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,551.12 : 105,642.36 = 42,560.64 : x
  2. Step 2: Convert to fraction form
    76,551.12/105,642.36 = 42,560.64/x
  3. Step 3: Cross multiply
    76,551.12x = 105,642.36 × 42,560.64
  4. Step 4: Simplify right side
    76,551.12x = 4,496,206,452.71
  5. Step 5: Solve for x
    x = 4,496,206,452.71/76,551.12
  6. Step 6: Final answer
    x = 58,734.69

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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.