Home / 86,641.38-129,994.27-52,976.46

Finding the Fourth Proportional to 86,641.38, 129,994.27 and 52,976.46

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Solution

The fourth proportional to 86,641.38, 129,994.27 and 52,976.46 is: 79,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,641.38 : 129,994.27 = 52,976.46 : x
  2. Step 2: Convert to fraction form
    86,641.38/129,994.27 = 52,976.46/x
  3. Step 3: Cross multiply
    86,641.38x = 129,994.27 × 52,976.46
  4. Step 4: Simplify right side
    86,641.38x = 6,886,636,599.92
  5. Step 5: Solve for x
    x = 6,886,636,599.92/86,641.38
  6. Step 6: Final answer
    x = 79,484.38

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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.