Home / 66,637.23-91,961.51-36,421.89

Finding the Fourth Proportional to 66,637.23, 91,961.51 and 36,421.89

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Solution

The fourth proportional to 66,637.23, 91,961.51 and 36,421.89 is: 50,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,637.23 : 91,961.51 = 36,421.89 : x
  2. Step 2: Convert to fraction form
    66,637.23/91,961.51 = 36,421.89/x
  3. Step 3: Cross multiply
    66,637.23x = 91,961.51 × 36,421.89
  4. Step 4: Simplify right side
    66,637.23x = 3,349,411,819.34
  5. Step 5: Solve for x
    x = 3,349,411,819.34/66,637.23
  6. Step 6: Final answer
    x = 50,263.37

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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.