Home / 80,677.02-121,010.90-30,762.15

Finding the Fourth Proportional to 80,677.02, 121,010.90 and 30,762.15

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Solution

The fourth proportional to 80,677.02, 121,010.90 and 30,762.15 is: 46,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,677.02 : 121,010.90 = 30,762.15 : x
  2. Step 2: Convert to fraction form
    80,677.02/121,010.90 = 30,762.15/x
  3. Step 3: Cross multiply
    80,677.02x = 121,010.90 × 30,762.15
  4. Step 4: Simplify right side
    80,677.02x = 3,722,555,303.62
  5. Step 5: Solve for x
    x = 3,722,555,303.62/80,677.02
  6. Step 6: Final answer
    x = 46,141.46

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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.