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Finding the Fourth Proportional to 69,643.98, 96,110.64 and 40,965.72

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Solution

The fourth proportional to 69,643.98, 96,110.64 and 40,965.72 is: 56,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.98 : 96,110.64 = 40,965.72 : x
  2. Step 2: Convert to fraction form
    69,643.98/96,110.64 = 40,965.72/x
  3. Step 3: Cross multiply
    69,643.98x = 96,110.64 × 40,965.72
  4. Step 4: Simplify right side
    69,643.98x = 3,937,241,567.26
  5. Step 5: Solve for x
    x = 3,937,241,567.26/69,643.98
  6. Step 6: Final answer
    x = 56,533.84

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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.