Home / 77,443.66-106,905-52,327.18

Finding the Fourth Proportional to 77,443.66, 106,905 and 52,327.18

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Solution

The fourth proportional to 77,443.66, 106,905 and 52,327.18 is: 72,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,443.66 : 106,905 = 52,327.18 : x
  2. Step 2: Convert to fraction form
    77,443.66/106,905 = 52,327.18/x
  3. Step 3: Cross multiply
    77,443.66x = 106,905 × 52,327.18
  4. Step 4: Simplify right side
    77,443.66x = 5,594,037,177.90
  5. Step 5: Solve for x
    x = 5,594,037,177.90/77,443.66
  6. Step 6: Final answer
    x = 72,233.64

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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.