Home / 85,793.29-128,707.14-29,635.45

Finding the Fourth Proportional to 85,793.29, 128,707.14 and 29,635.45

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Solution

The fourth proportional to 85,793.29, 128,707.14 and 29,635.45 is: 44,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,793.29 : 128,707.14 = 29,635.45 : x
  2. Step 2: Convert to fraction form
    85,793.29/128,707.14 = 29,635.45/x
  3. Step 3: Cross multiply
    85,793.29x = 128,707.14 × 29,635.45
  4. Step 4: Simplify right side
    85,793.29x = 3,814,294,012.11
  5. Step 5: Solve for x
    x = 3,814,294,012.11/85,793.29
  6. Step 6: Final answer
    x = 44,459.12

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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.