Home / 72,110.08-99,499.84-66,303.52

Finding the Fourth Proportional to 72,110.08, 99,499.84 and 66,303.52

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Solution

The fourth proportional to 72,110.08, 99,499.84 and 66,303.52 is: 91,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110.08 : 99,499.84 = 66,303.52 : x
  2. Step 2: Convert to fraction form
    72,110.08/99,499.84 = 66,303.52/x
  3. Step 3: Cross multiply
    72,110.08x = 99,499.84 × 66,303.52
  4. Step 4: Simplify right side
    72,110.08x = 6,597,189,631.44
  5. Step 5: Solve for x
    x = 6,597,189,631.44/72,110.08
  6. Step 6: Final answer
    x = 91,487.76

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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.