Home / 86,721.23-130,090.53-23,542.40

Finding the Fourth Proportional to 86,721.23, 130,090.53 and 23,542.40

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Solution

The fourth proportional to 86,721.23, 130,090.53 and 23,542.40 is: 35,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,721.23 : 130,090.53 = 23,542.40 : x
  2. Step 2: Convert to fraction form
    86,721.23/130,090.53 = 23,542.40/x
  3. Step 3: Cross multiply
    86,721.23x = 130,090.53 × 23,542.40
  4. Step 4: Simplify right side
    86,721.23x = 3,062,643,293.47
  5. Step 5: Solve for x
    x = 3,062,643,293.47/86,721.23
  6. Step 6: Final answer
    x = 35,315.96

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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.