Home / 56,572.08-78,067.44-31,421.04

Finding the Fourth Proportional to 56,572.08, 78,067.44 and 31,421.04

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Solution

The fourth proportional to 56,572.08, 78,067.44 and 31,421.04 is: 43,359.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572.08 : 78,067.44 = 31,421.04 : x
  2. Step 2: Convert to fraction form
    56,572.08/78,067.44 = 31,421.04/x
  3. Step 3: Cross multiply
    56,572.08x = 78,067.44 × 31,421.04
  4. Step 4: Simplify right side
    56,572.08x = 2,452,960,154.94
  5. Step 5: Solve for x
    x = 2,452,960,154.94/56,572.08
  6. Step 6: Final answer
    x = 43,359.91

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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.