Home / 86,043.87-129,065.53-22,870.35

Finding the Fourth Proportional to 86,043.87, 129,065.53 and 22,870.35

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Solution

The fourth proportional to 86,043.87, 129,065.53 and 22,870.35 is: 34,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,043.87 : 129,065.53 = 22,870.35 : x
  2. Step 2: Convert to fraction form
    86,043.87/129,065.53 = 22,870.35/x
  3. Step 3: Cross multiply
    86,043.87x = 129,065.53 × 22,870.35
  4. Step 4: Simplify right side
    86,043.87x = 2,951,773,844.04
  5. Step 5: Solve for x
    x = 2,951,773,844.04/86,043.87
  6. Step 6: Final answer
    x = 34,305.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.