Home / 85,479.30-128,226.24-22,307.81

Finding the Fourth Proportional to 85,479.30, 128,226.24 and 22,307.81

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Solution

The fourth proportional to 85,479.30, 128,226.24 and 22,307.81 is: 33,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,479.30 : 128,226.24 = 22,307.81 : x
  2. Step 2: Convert to fraction form
    85,479.30/128,226.24 = 22,307.81/x
  3. Step 3: Cross multiply
    85,479.30x = 128,226.24 × 22,307.81
  4. Step 4: Simplify right side
    85,479.30x = 2,860,445,957.80
  5. Step 5: Solve for x
    x = 2,860,445,957.80/85,479.30
  6. Step 6: Final answer
    x = 33,463.61

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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.