Home / 77,257.32-106,205.16-66,462.72

Finding the Fourth Proportional to 77,257.32, 106,205.16 and 66,462.72

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Solution

The fourth proportional to 77,257.32, 106,205.16 and 66,462.72 is: 91,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,257.32 : 106,205.16 = 66,462.72 : x
  2. Step 2: Convert to fraction form
    77,257.32/106,205.16 = 66,462.72/x
  3. Step 3: Cross multiply
    77,257.32x = 106,205.16 × 66,462.72
  4. Step 4: Simplify right side
    77,257.32x = 7,058,683,811.64
  5. Step 5: Solve for x
    x = 7,058,683,811.64/77,257.32
  6. Step 6: Final answer
    x = 91,365.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.