Home / 80,535.12-111,120.54-48,703.32

Finding the Fourth Proportional to 80,535.12, 111,120.54 and 48,703.32

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Solution

The fourth proportional to 80,535.12, 111,120.54 and 48,703.32 is: 67,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,535.12 : 111,120.54 = 48,703.32 : x
  2. Step 2: Convert to fraction form
    80,535.12/111,120.54 = 48,703.32/x
  3. Step 3: Cross multiply
    80,535.12x = 111,120.54 × 48,703.32
  4. Step 4: Simplify right side
    80,535.12x = 5,411,939,218.19
  5. Step 5: Solve for x
    x = 5,411,939,218.19/80,535.12
  6. Step 6: Final answer
    x = 67,199.74

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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.