Home / 76,128.60-114,209.10-23,543.40

Finding the Fourth Proportional to 76,128.60, 114,209.10 and 23,543.40

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Solution

The fourth proportional to 76,128.60, 114,209.10 and 23,543.40 is: 35,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128.60 : 114,209.10 = 23,543.40 : x
  2. Step 2: Convert to fraction form
    76,128.60/114,209.10 = 23,543.40/x
  3. Step 3: Cross multiply
    76,128.60x = 114,209.10 × 23,543.40
  4. Step 4: Simplify right side
    76,128.60x = 2,688,870,524.94
  5. Step 5: Solve for x
    x = 2,688,870,524.94/76,128.60
  6. Step 6: Final answer
    x = 35,320.11

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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.