Home / 56,777.24-78,352.67-30,935.68

Finding the Fourth Proportional to 56,777.24, 78,352.67 and 30,935.68

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Solution

The fourth proportional to 56,777.24, 78,352.67 and 30,935.68 is: 42,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,777.24 : 78,352.67 = 30,935.68 : x
  2. Step 2: Convert to fraction form
    56,777.24/78,352.67 = 30,935.68/x
  3. Step 3: Cross multiply
    56,777.24x = 78,352.67 × 30,935.68
  4. Step 4: Simplify right side
    56,777.24x = 2,423,893,007.72
  5. Step 5: Solve for x
    x = 2,423,893,007.72/56,777.24
  6. Step 6: Final answer
    x = 42,691.28

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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.