Home / 83,386.98-115,074.95-45,147.36

Finding the Fourth Proportional to 83,386.98, 115,074.95 and 45,147.36

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Solution

The fourth proportional to 83,386.98, 115,074.95 and 45,147.36 is: 62,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.98 : 115,074.95 = 45,147.36 : x
  2. Step 2: Convert to fraction form
    83,386.98/115,074.95 = 45,147.36/x
  3. Step 3: Cross multiply
    83,386.98x = 115,074.95 × 45,147.36
  4. Step 4: Simplify right side
    83,386.98x = 5,195,330,194.63
  5. Step 5: Solve for x
    x = 5,195,330,194.63/83,386.98
  6. Step 6: Final answer
    x = 62,303.85

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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.