Home / 79,290.15-109,425.47-52,385.46

Finding the Fourth Proportional to 79,290.15, 109,425.47 and 52,385.46

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Solution

The fourth proportional to 79,290.15, 109,425.47 and 52,385.46 is: 72,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,290.15 : 109,425.47 = 52,385.46 : x
  2. Step 2: Convert to fraction form
    79,290.15/109,425.47 = 52,385.46/x
  3. Step 3: Cross multiply
    79,290.15x = 109,425.47 × 52,385.46
  4. Step 4: Simplify right side
    79,290.15x = 5,732,303,319.74
  5. Step 5: Solve for x
    x = 5,732,303,319.74/79,290.15
  6. Step 6: Final answer
    x = 72,295.28

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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.