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Finding the Fourth Proportional to 65,400.40, 98,141.10 and 25,953.40

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Solution

The fourth proportional to 65,400.40, 98,141.10 and 25,953.40 is: 38,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,400.40 : 98,141.10 = 25,953.40 : x
  2. Step 2: Convert to fraction form
    65,400.40/98,141.10 = 25,953.40/x
  3. Step 3: Cross multiply
    65,400.40x = 98,141.10 × 25,953.40
  4. Step 4: Simplify right side
    65,400.40x = 2,547,095,224.74
  5. Step 5: Solve for x
    x = 2,547,095,224.74/65,400.40
  6. Step 6: Final answer
    x = 38,946.17

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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.