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Finding the Fourth Proportional to 85,877.01, 128,815.72 and 23,547.51

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Solution

The fourth proportional to 85,877.01, 128,815.72 and 23,547.51 is: 35,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,877.01 : 128,815.72 = 23,547.51 : x
  2. Step 2: Convert to fraction form
    85,877.01/128,815.72 = 23,547.51/x
  3. Step 3: Cross multiply
    85,877.01x = 128,815.72 × 23,547.51
  4. Step 4: Simplify right side
    85,877.01x = 3,033,289,395.99
  5. Step 5: Solve for x
    x = 3,033,289,395.99/85,877.01
  6. Step 6: Final answer
    x = 35,321.32

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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.