Home / 43,187.21-64,634.51-26,557.78

Finding the Fourth Proportional to 43,187.21, 64,634.51 and 26,557.78

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Solution

The fourth proportional to 43,187.21, 64,634.51 and 26,557.78 is: 39,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,187.21 : 64,634.51 = 26,557.78 : x
  2. Step 2: Convert to fraction form
    43,187.21/64,634.51 = 26,557.78/x
  3. Step 3: Cross multiply
    43,187.21x = 64,634.51 × 26,557.78
  4. Step 4: Simplify right side
    43,187.21x = 1,716,549,096.99
  5. Step 5: Solve for x
    x = 1,716,549,096.99/43,187.21
  6. Step 6: Final answer
    x = 39,746.70

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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.