Home / 76,292.82-105,317.01-71,510.58

Finding the Fourth Proportional to 76,292.82, 105,317.01 and 71,510.58

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Solution

The fourth proportional to 76,292.82, 105,317.01 and 71,510.58 is: 98,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,292.82 : 105,317.01 = 71,510.58 : x
  2. Step 2: Convert to fraction form
    76,292.82/105,317.01 = 71,510.58/x
  3. Step 3: Cross multiply
    76,292.82x = 105,317.01 × 71,510.58
  4. Step 4: Simplify right side
    76,292.82x = 7,531,280,468.97
  5. Step 5: Solve for x
    x = 7,531,280,468.97/76,292.82
  6. Step 6: Final answer
    x = 98,715.46

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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.