Home / 56,328.32-77,689.68-39,326.96

Finding the Fourth Proportional to 56,328.32, 77,689.68 and 39,326.96

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Solution

The fourth proportional to 56,328.32, 77,689.68 and 39,326.96 is: 54,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,328.32 : 77,689.68 = 39,326.96 : x
  2. Step 2: Convert to fraction form
    56,328.32/77,689.68 = 39,326.96/x
  3. Step 3: Cross multiply
    56,328.32x = 77,689.68 × 39,326.96
  4. Step 4: Simplify right side
    56,328.32x = 3,055,298,937.77
  5. Step 5: Solve for x
    x = 3,055,298,937.77/56,328.32
  6. Step 6: Final answer
    x = 54,240.90

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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.