Home / 66,501.72-99,767.61-22,130.21

Finding the Fourth Proportional to 66,501.72, 99,767.61 and 22,130.21

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Solution

The fourth proportional to 66,501.72, 99,767.61 and 22,130.21 is: 33,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,501.72 : 99,767.61 = 22,130.21 : x
  2. Step 2: Convert to fraction form
    66,501.72/99,767.61 = 22,130.21/x
  3. Step 3: Cross multiply
    66,501.72x = 99,767.61 × 22,130.21
  4. Step 4: Simplify right side
    66,501.72x = 2,207,878,409.92
  5. Step 5: Solve for x
    x = 2,207,878,409.92/66,501.72
  6. Step 6: Final answer
    x = 33,200.32

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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.