Home / 85,533.98-128,301.28-29,390.27

Finding the Fourth Proportional to 85,533.98, 128,301.28 and 29,390.27

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Solution

The fourth proportional to 85,533.98, 128,301.28 and 29,390.27 is: 44,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.98 : 128,301.28 = 29,390.27 : x
  2. Step 2: Convert to fraction form
    85,533.98/128,301.28 = 29,390.27/x
  3. Step 3: Cross multiply
    85,533.98x = 128,301.28 × 29,390.27
  4. Step 4: Simplify right side
    85,533.98x = 3,770,808,545.56
  5. Step 5: Solve for x
    x = 3,770,808,545.56/85,533.98
  6. Step 6: Final answer
    x = 44,085.51

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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.