Home / 76,531.80-105,363.54-60,369.60

Finding the Fourth Proportional to 76,531.80, 105,363.54 and 60,369.60

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Solution

The fourth proportional to 76,531.80, 105,363.54 and 60,369.60 is: 83,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.80 : 105,363.54 = 60,369.60 : x
  2. Step 2: Convert to fraction form
    76,531.80/105,363.54 = 60,369.60/x
  3. Step 3: Cross multiply
    76,531.80x = 105,363.54 × 60,369.60
  4. Step 4: Simplify right side
    76,531.80x = 6,360,754,764.38
  5. Step 5: Solve for x
    x = 6,360,754,764.38/76,531.80
  6. Step 6: Final answer
    x = 83,112.57

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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.