Home / 72,289.24-99,689.16-56,367.88

Finding the Fourth Proportional to 72,289.24, 99,689.16 and 56,367.88

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Solution

The fourth proportional to 72,289.24, 99,689.16 and 56,367.88 is: 77,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289.24 : 99,689.16 = 56,367.88 : x
  2. Step 2: Convert to fraction form
    72,289.24/99,689.16 = 56,367.88/x
  3. Step 3: Cross multiply
    72,289.24x = 99,689.16 × 56,367.88
  4. Step 4: Simplify right side
    72,289.24x = 5,619,266,570.34
  5. Step 5: Solve for x
    x = 5,619,266,570.34/72,289.24
  6. Step 6: Final answer
    x = 77,733.10

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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.