Home / 83,386.04-115,072.75-45,145.58

Finding the Fourth Proportional to 83,386.04, 115,072.75 and 45,145.58

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Solution

The fourth proportional to 83,386.04, 115,072.75 and 45,145.58 is: 62,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.04 : 115,072.75 = 45,145.58 : x
  2. Step 2: Convert to fraction form
    83,386.04/115,072.75 = 45,145.58/x
  3. Step 3: Cross multiply
    83,386.04x = 115,072.75 × 45,145.58
  4. Step 4: Simplify right side
    83,386.04x = 5,195,025,522.01
  5. Step 5: Solve for x
    x = 5,195,025,522.01/83,386.04
  6. Step 6: Final answer
    x = 62,300.91

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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.