Home / 80,767.36-121,099.20-53,032.96

Finding the Fourth Proportional to 80,767.36, 121,099.20 and 53,032.96

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Solution

The fourth proportional to 80,767.36, 121,099.20 and 53,032.96 is: 79,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,767.36 : 121,099.20 = 53,032.96 : x
  2. Step 2: Convert to fraction form
    80,767.36/121,099.20 = 53,032.96/x
  3. Step 3: Cross multiply
    80,767.36x = 121,099.20 × 53,032.96
  4. Step 4: Simplify right side
    80,767.36x = 6,422,249,029.63
  5. Step 5: Solve for x
    x = 6,422,249,029.63/80,767.36
  6. Step 6: Final answer
    x = 79,515.40

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1.5x scale

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.