Home / 66,389.48-91,637.70-39,536.36

Finding the Fourth Proportional to 66,389.48, 91,637.70 and 39,536.36

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Solution

The fourth proportional to 66,389.48, 91,637.70 and 39,536.36 is: 54,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.48 : 91,637.70 = 39,536.36 : x
  2. Step 2: Convert to fraction form
    66,389.48/91,637.70 = 39,536.36/x
  3. Step 3: Cross multiply
    66,389.48x = 91,637.70 × 39,536.36
  4. Step 4: Simplify right side
    66,389.48x = 3,623,021,096.77
  5. Step 5: Solve for x
    x = 3,623,021,096.77/66,389.48
  6. Step 6: Final answer
    x = 54,572.22

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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.