Home / 42,806.64-64,220.51-30,181.07

Finding the Fourth Proportional to 42,806.64, 64,220.51 and 30,181.07

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Solution

The fourth proportional to 42,806.64, 64,220.51 and 30,181.07 is: 45,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,806.64 : 64,220.51 = 30,181.07 : x
  2. Step 2: Convert to fraction form
    42,806.64/64,220.51 = 30,181.07/x
  3. Step 3: Cross multiply
    42,806.64x = 64,220.51 × 30,181.07
  4. Step 4: Simplify right side
    42,806.64x = 1,938,243,943.75
  5. Step 5: Solve for x
    x = 1,938,243,943.75/42,806.64
  6. Step 6: Final answer
    x = 45,279.04

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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.