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Finding the Fourth Proportional to 65,364.76, 98,063.48 and 18,617.63

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Solution

The fourth proportional to 65,364.76, 98,063.48 and 18,617.63 is: 27,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,364.76 : 98,063.48 = 18,617.63 : x
  2. Step 2: Convert to fraction form
    65,364.76/98,063.48 = 18,617.63/x
  3. Step 3: Cross multiply
    65,364.76x = 98,063.48 × 18,617.63
  4. Step 4: Simplify right side
    65,364.76x = 1,825,709,878.86
  5. Step 5: Solve for x
    x = 1,825,709,878.86/65,364.76
  6. Step 6: Final answer
    x = 27,931.10

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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.