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Finding the Fourth Proportional to 84,851.60, 127,277.40 and 51,636.80

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Solution

The fourth proportional to 84,851.60, 127,277.40 and 51,636.80 is: 77,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,851.60 : 127,277.40 = 51,636.80 : x
  2. Step 2: Convert to fraction form
    84,851.60/127,277.40 = 51,636.80/x
  3. Step 3: Cross multiply
    84,851.60x = 127,277.40 × 51,636.80
  4. Step 4: Simplify right side
    84,851.60x = 6,572,197,648.32
  5. Step 5: Solve for x
    x = 6,572,197,648.32/84,851.60
  6. Step 6: Final answer
    x = 77,455.20

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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.