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Finding the Fourth Proportional to 65,354.13, 98,031.18 and 18,607

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Solution

The fourth proportional to 65,354.13, 98,031.18 and 18,607 is: 27,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.13 : 98,031.18 = 18,607 : x
  2. Step 2: Convert to fraction form
    65,354.13/98,031.18 = 18,607/x
  3. Step 3: Cross multiply
    65,354.13x = 98,031.18 × 18,607
  4. Step 4: Simplify right side
    65,354.13x = 1,824,066,166.26
  5. Step 5: Solve for x
    x = 1,824,066,166.26/65,354.13
  6. Step 6: Final answer
    x = 27,910.50

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1.5x scale

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.