Home / 56,520.32-77,999.68-31,368.96

Finding the Fourth Proportional to 56,520.32, 77,999.68 and 31,368.96

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Solution

The fourth proportional to 56,520.32, 77,999.68 and 31,368.96 is: 43,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.32 : 77,999.68 = 31,368.96 : x
  2. Step 2: Convert to fraction form
    56,520.32/77,999.68 = 31,368.96/x
  3. Step 3: Cross multiply
    56,520.32x = 77,999.68 × 31,368.96
  4. Step 4: Simplify right side
    56,520.32x = 2,446,768,841.93
  5. Step 5: Solve for x
    x = 2,446,768,841.93/56,520.32
  6. Step 6: Final answer
    x = 43,290.07

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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.