Home / 76,521.43-105,341.07-63,071.38

Finding the Fourth Proportional to 76,521.43, 105,341.07 and 63,071.38

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Solution

The fourth proportional to 76,521.43, 105,341.07 and 63,071.38 is: 86,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,521.43 : 105,341.07 = 63,071.38 : x
  2. Step 2: Convert to fraction form
    76,521.43/105,341.07 = 63,071.38/x
  3. Step 3: Cross multiply
    76,521.43x = 105,341.07 × 63,071.38
  4. Step 4: Simplify right side
    76,521.43x = 6,644,006,655.58
  5. Step 5: Solve for x
    x = 6,644,006,655.58/76,521.43
  6. Step 6: Final answer
    x = 86,825.44

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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.