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Finding the Fourth Proportional to 71,636.40, 98,852.40 and 42,962.40

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Solution

The fourth proportional to 71,636.40, 98,852.40 and 42,962.40 is: 59,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,636.40 : 98,852.40 = 42,962.40 : x
  2. Step 2: Convert to fraction form
    71,636.40/98,852.40 = 42,962.40/x
  3. Step 3: Cross multiply
    71,636.40x = 98,852.40 × 42,962.40
  4. Step 4: Simplify right side
    71,636.40x = 4,246,936,349.76
  5. Step 5: Solve for x
    x = 4,246,936,349.76/71,636.40
  6. Step 6: Final answer
    x = 59,284.61

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1.5x scale

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.