Home / 76,678.08-115,045.67-34,545.52

Finding the Fourth Proportional to 76,678.08, 115,045.67 and 34,545.52

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Solution

The fourth proportional to 76,678.08, 115,045.67 and 34,545.52 is: 51,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,678.08 : 115,045.67 = 34,545.52 : x
  2. Step 2: Convert to fraction form
    76,678.08/115,045.67 = 34,545.52/x
  3. Step 3: Cross multiply
    76,678.08x = 115,045.67 × 34,545.52
  4. Step 4: Simplify right side
    76,678.08x = 3,974,312,493.90
  5. Step 5: Solve for x
    x = 3,974,312,493.90/76,678.08
  6. Step 6: Final answer
    x = 51,831.14

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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.