Home / 89,421.22-123,421.62-59,207.68

Finding the Fourth Proportional to 89,421.22, 123,421.62 and 59,207.68

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Solution

The fourth proportional to 89,421.22, 123,421.62 and 59,207.68 is: 81,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,421.22 : 123,421.62 = 59,207.68 : x
  2. Step 2: Convert to fraction form
    89,421.22/123,421.62 = 59,207.68/x
  3. Step 3: Cross multiply
    89,421.22x = 123,421.62 × 59,207.68
  4. Step 4: Simplify right side
    89,421.22x = 7,307,507,782.04
  5. Step 5: Solve for x
    x = 7,307,507,782.04/89,421.22
  6. Step 6: Final answer
    x = 81,720.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.