Home / 85,421.42-128,132.13-22,241.36

Finding the Fourth Proportional to 85,421.42, 128,132.13 and 22,241.36

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Solution

The fourth proportional to 85,421.42, 128,132.13 and 22,241.36 is: 33,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,421.42 : 128,132.13 = 22,241.36 : x
  2. Step 2: Convert to fraction form
    85,421.42/128,132.13 = 22,241.36/x
  3. Step 3: Cross multiply
    85,421.42x = 128,132.13 × 22,241.36
  4. Step 4: Simplify right side
    85,421.42x = 2,849,832,925.08
  5. Step 5: Solve for x
    x = 2,849,832,925.08/85,421.42
  6. Step 6: Final answer
    x = 33,362.04

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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.