Home / 56,918.08-78,545.04-31,424.02

Finding the Fourth Proportional to 56,918.08, 78,545.04 and 31,424.02

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Solution

The fourth proportional to 56,918.08, 78,545.04 and 31,424.02 is: 43,364.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.08 : 78,545.04 = 31,424.02 : x
  2. Step 2: Convert to fraction form
    56,918.08/78,545.04 = 31,424.02/x
  3. Step 3: Cross multiply
    56,918.08x = 78,545.04 × 31,424.02
  4. Step 4: Simplify right side
    56,918.08x = 2,468,200,907.86
  5. Step 5: Solve for x
    x = 2,468,200,907.86/56,918.08
  6. Step 6: Final answer
    x = 43,364.09

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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.