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Finding the Fourth Proportional to 66,090.57, 91,210.47 and 37,801.71

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Solution

The fourth proportional to 66,090.57, 91,210.47 and 37,801.71 is: 52,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.57 : 91,210.47 = 37,801.71 : x
  2. Step 2: Convert to fraction form
    66,090.57/91,210.47 = 37,801.71/x
  3. Step 3: Cross multiply
    66,090.57x = 91,210.47 × 37,801.71
  4. Step 4: Simplify right side
    66,090.57x = 3,447,911,735.90
  5. Step 5: Solve for x
    x = 3,447,911,735.90/66,090.57
  6. Step 6: Final answer
    x = 52,169.50

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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.