Home / 83,626.53-115,405.46-45,386.40

Finding the Fourth Proportional to 83,626.53, 115,405.46 and 45,386.40

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Solution

The fourth proportional to 83,626.53, 115,405.46 and 45,386.40 is: 62,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,626.53 : 115,405.46 = 45,386.40 : x
  2. Step 2: Convert to fraction form
    83,626.53/115,405.46 = 45,386.40/x
  3. Step 3: Cross multiply
    83,626.53x = 115,405.46 × 45,386.40
  4. Step 4: Simplify right side
    83,626.53x = 5,237,838,369.74
  5. Step 5: Solve for x
    x = 5,237,838,369.74/83,626.53
  6. Step 6: Final answer
    x = 62,633.69

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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.