Home / 115,105.57-172,681.76-48,545.93

Finding the Fourth Proportional to 115,105.57, 172,681.76 and 48,545.93

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Solution

The fourth proportional to 115,105.57, 172,681.76 and 48,545.93 is: 72,828.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,105.57 : 172,681.76 = 48,545.93 : x
  2. Step 2: Convert to fraction form
    115,105.57/172,681.76 = 48,545.93/x
  3. Step 3: Cross multiply
    115,105.57x = 172,681.76 × 48,545.93
  4. Step 4: Simplify right side
    115,105.57x = 8,382,997,118.04
  5. Step 5: Solve for x
    x = 8,382,997,118.04/115,105.57
  6. Step 6: Final answer
    x = 72,828.77

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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.