Home / 99,529.72-137,327.16-56,499.64

Finding the Fourth Proportional to 99,529.72, 137,327.16 and 56,499.64

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Solution

The fourth proportional to 99,529.72, 137,327.16 and 56,499.64 is: 77,955.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,529.72 : 137,327.16 = 56,499.64 : x
  2. Step 2: Convert to fraction form
    99,529.72/137,327.16 = 56,499.64/x
  3. Step 3: Cross multiply
    99,529.72x = 137,327.16 × 56,499.64
  4. Step 4: Simplify right side
    99,529.72x = 7,758,935,102.22
  5. Step 5: Solve for x
    x = 7,758,935,102.22/99,529.72
  6. Step 6: Final answer
    x = 77,955.96

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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.