Home / 76,966.50-115,441.62-36,430.30

Finding the Fourth Proportional to 76,966.50, 115,441.62 and 36,430.30

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Solution

The fourth proportional to 76,966.50, 115,441.62 and 36,430.30 is: 54,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966.50 : 115,441.62 = 36,430.30 : x
  2. Step 2: Convert to fraction form
    76,966.50/115,441.62 = 36,430.30/x
  3. Step 3: Cross multiply
    76,966.50x = 115,441.62 × 36,430.30
  4. Step 4: Simplify right side
    76,966.50x = 4,205,572,849.09
  5. Step 5: Solve for x
    x = 4,205,572,849.09/76,966.50
  6. Step 6: Final answer
    x = 54,641.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.