Home / 85,636.22-128,454.34-23,306.72

Finding the Fourth Proportional to 85,636.22, 128,454.34 and 23,306.72

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Solution

The fourth proportional to 85,636.22, 128,454.34 and 23,306.72 is: 34,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,636.22 : 128,454.34 = 23,306.72 : x
  2. Step 2: Convert to fraction form
    85,636.22/128,454.34 = 23,306.72/x
  3. Step 3: Cross multiply
    85,636.22x = 128,454.34 × 23,306.72
  4. Step 4: Simplify right side
    85,636.22x = 2,993,849,335.16
  5. Step 5: Solve for x
    x = 2,993,849,335.16/85,636.22
  6. Step 6: Final answer
    x = 34,960.08

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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.