Home / 61,409.48-92,156.51-21,428.69

Finding the Fourth Proportional to 61,409.48, 92,156.51 and 21,428.69

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Solution

The fourth proportional to 61,409.48, 92,156.51 and 21,428.69 is: 32,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,409.48 : 92,156.51 = 21,428.69 : x
  2. Step 2: Convert to fraction form
    61,409.48/92,156.51 = 21,428.69/x
  3. Step 3: Cross multiply
    61,409.48x = 92,156.51 × 21,428.69
  4. Step 4: Simplify right side
    61,409.48x = 1,974,792,877.06
  5. Step 5: Solve for x
    x = 1,974,792,877.06/61,409.48
  6. Step 6: Final answer
    x = 32,157.79

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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.