Home / 44,420.51-66,665.73-20,715.86

Finding the Fourth Proportional to 44,420.51, 66,665.73 and 20,715.86

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Solution

The fourth proportional to 44,420.51, 66,665.73 and 20,715.86 is: 31,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,420.51 : 66,665.73 = 20,715.86 : x
  2. Step 2: Convert to fraction form
    44,420.51/66,665.73 = 20,715.86/x
  3. Step 3: Cross multiply
    44,420.51x = 66,665.73 × 20,715.86
  4. Step 4: Simplify right side
    44,420.51x = 1,381,037,929.48
  5. Step 5: Solve for x
    x = 1,381,037,929.48/44,420.51
  6. Step 6: Final answer
    x = 31,090.10

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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.