Home / 80,700.06-121,050.10-21,535.94

Finding the Fourth Proportional to 80,700.06, 121,050.10 and 21,535.94

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Solution

The fourth proportional to 80,700.06, 121,050.10 and 21,535.94 is: 32,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,700.06 : 121,050.10 = 21,535.94 : x
  2. Step 2: Convert to fraction form
    80,700.06/121,050.10 = 21,535.94/x
  3. Step 3: Cross multiply
    80,700.06x = 121,050.10 × 21,535.94
  4. Step 4: Simplify right side
    80,700.06x = 2,606,927,690.59
  5. Step 5: Solve for x
    x = 2,606,927,690.59/80,700.06
  6. Step 6: Final answer
    x = 32,303.91

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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.