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Finding the Fourth Proportional to 68,746.40, 103,070.40 and 26,590.40

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Solution

The fourth proportional to 68,746.40, 103,070.40 and 26,590.40 is: 39,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,746.40 : 103,070.40 = 26,590.40 : x
  2. Step 2: Convert to fraction form
    68,746.40/103,070.40 = 26,590.40/x
  3. Step 3: Cross multiply
    68,746.40x = 103,070.40 × 26,590.40
  4. Step 4: Simplify right side
    68,746.40x = 2,740,683,164.16
  5. Step 5: Solve for x
    x = 2,740,683,164.16/68,746.40
  6. Step 6: Final answer
    x = 39,866.57

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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.