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Finding the Fourth Proportional to 86,197.60, 118,969.07 and 53,947.22

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Solution

The fourth proportional to 86,197.60, 118,969.07 and 53,947.22 is: 74,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,197.60 : 118,969.07 = 53,947.22 : x
  2. Step 2: Convert to fraction form
    86,197.60/118,969.07 = 53,947.22/x
  3. Step 3: Cross multiply
    86,197.60x = 118,969.07 × 53,947.22
  4. Step 4: Simplify right side
    86,197.60x = 6,418,050,031.36
  5. Step 5: Solve for x
    x = 6,418,050,031.36/86,197.60
  6. Step 6: Final answer
    x = 74,457.41

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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.