Home / 83,979.37-115,854.06-56,746.66

Finding the Fourth Proportional to 83,979.37, 115,854.06 and 56,746.66

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Solution

The fourth proportional to 83,979.37, 115,854.06 and 56,746.66 is: 78,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,979.37 : 115,854.06 = 56,746.66 : x
  2. Step 2: Convert to fraction form
    83,979.37/115,854.06 = 56,746.66/x
  3. Step 3: Cross multiply
    83,979.37x = 115,854.06 × 56,746.66
  4. Step 4: Simplify right side
    83,979.37x = 6,574,330,952.44
  5. Step 5: Solve for x
    x = 6,574,330,952.44/83,979.37
  6. Step 6: Final answer
    x = 78,285.07

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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.