Home / 85,951.18-128,924.07-23,621.14

Finding the Fourth Proportional to 85,951.18, 128,924.07 and 23,621.14

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Solution

The fourth proportional to 85,951.18, 128,924.07 and 23,621.14 is: 35,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,951.18 : 128,924.07 = 23,621.14 : x
  2. Step 2: Convert to fraction form
    85,951.18/128,924.07 = 23,621.14/x
  3. Step 3: Cross multiply
    85,951.18x = 128,924.07 × 23,621.14
  4. Step 4: Simplify right side
    85,951.18x = 3,045,333,506.84
  5. Step 5: Solve for x
    x = 3,045,333,506.84/85,951.18
  6. Step 6: Final answer
    x = 35,430.97

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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.