Home / 85,329.04-128,000.40-22,998.64

Finding the Fourth Proportional to 85,329.04, 128,000.40 and 22,998.64

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Solution

The fourth proportional to 85,329.04, 128,000.40 and 22,998.64 is: 34,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.04 : 128,000.40 = 22,998.64 : x
  2. Step 2: Convert to fraction form
    85,329.04/128,000.40 = 22,998.64/x
  3. Step 3: Cross multiply
    85,329.04x = 128,000.40 × 22,998.64
  4. Step 4: Simplify right side
    85,329.04x = 2,943,835,119.46
  5. Step 5: Solve for x
    x = 2,943,835,119.46/85,329.04
  6. Step 6: Final answer
    x = 34,499.80

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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.