Home / 83,985.39-115,901.09-45,746.71

Finding the Fourth Proportional to 83,985.39, 115,901.09 and 45,746.71

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Solution

The fourth proportional to 83,985.39, 115,901.09 and 45,746.71 is: 63,131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,985.39 : 115,901.09 = 45,746.71 : x
  2. Step 2: Convert to fraction form
    83,985.39/115,901.09 = 45,746.71/x
  3. Step 3: Cross multiply
    83,985.39x = 115,901.09 × 45,746.71
  4. Step 4: Simplify right side
    83,985.39x = 5,302,093,377.53
  5. Step 5: Solve for x
    x = 5,302,093,377.53/83,985.39
  6. Step 6: Final answer
    x = 63,131.14

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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.