Home / 92,979.18-128,310.75-52,700.56

Finding the Fourth Proportional to 92,979.18, 128,310.75 and 52,700.56

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Solution

The fourth proportional to 92,979.18, 128,310.75 and 52,700.56 is: 72,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.18 : 128,310.75 = 52,700.56 : x
  2. Step 2: Convert to fraction form
    92,979.18/128,310.75 = 52,700.56/x
  3. Step 3: Cross multiply
    92,979.18x = 128,310.75 × 52,700.56
  4. Step 4: Simplify right side
    92,979.18x = 6,762,048,058.24
  5. Step 5: Solve for x
    x = 6,762,048,058.24/92,979.18
  6. Step 6: Final answer
    x = 72,726.48

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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.