Home / 86,844.07-130,266.10-21,180.07

Finding the Fourth Proportional to 86,844.07, 130,266.10 and 21,180.07

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Solution

The fourth proportional to 86,844.07, 130,266.10 and 21,180.07 is: 31,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,844.07 : 130,266.10 = 21,180.07 : x
  2. Step 2: Convert to fraction form
    86,844.07/130,266.10 = 21,180.07/x
  3. Step 3: Cross multiply
    86,844.07x = 130,266.10 × 21,180.07
  4. Step 4: Simplify right side
    86,844.07x = 2,759,044,465.30
  5. Step 5: Solve for x
    x = 2,759,044,465.30/86,844.07
  6. Step 6: Final answer
    x = 31,770.10

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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.