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Finding the Fourth Proportional to 61,510.79, 92,267.09 and 19,390.07

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Solution

The fourth proportional to 61,510.79, 92,267.09 and 19,390.07 is: 29,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,510.79 : 92,267.09 = 19,390.07 : x
  2. Step 2: Convert to fraction form
    61,510.79/92,267.09 = 19,390.07/x
  3. Step 3: Cross multiply
    61,510.79x = 92,267.09 × 19,390.07
  4. Step 4: Simplify right side
    61,510.79x = 1,789,065,333.80
  5. Step 5: Solve for x
    x = 1,789,065,333.80/61,510.79
  6. Step 6: Final answer
    x = 29,085.39

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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.