Home / 85,560.60-128,308.10-29,390.24

Finding the Fourth Proportional to 85,560.60, 128,308.10 and 29,390.24

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Solution

The fourth proportional to 85,560.60, 128,308.10 and 29,390.24 is: 44,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.60 : 128,308.10 = 29,390.24 : x
  2. Step 2: Convert to fraction form
    85,560.60/128,308.10 = 29,390.24/x
  3. Step 3: Cross multiply
    85,560.60x = 128,308.10 × 29,390.24
  4. Step 4: Simplify right side
    85,560.60x = 3,771,006,192.08
  5. Step 5: Solve for x
    x = 3,771,006,192.08/85,560.60
  6. Step 6: Final answer
    x = 44,074.10

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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.