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Finding the Fourth Proportional to 66,844, 100,307.64 and 60,615.32

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Solution

The fourth proportional to 66,844, 100,307.64 and 60,615.32 is: 90,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,844 : 100,307.64 = 60,615.32 : x
  2. Step 2: Convert to fraction form
    66,844/100,307.64 = 60,615.32/x
  3. Step 3: Cross multiply
    66,844x = 100,307.64 × 60,615.32
  4. Step 4: Simplify right side
    66,844x = 6,080,179,697.04
  5. Step 5: Solve for x
    x = 6,080,179,697.04/66,844
  6. Step 6: Final answer
    x = 90,960.74

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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.