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Finding the Fourth Proportional to 84,851.84, 117,017.30 and 57,668.64

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Solution

The fourth proportional to 84,851.84, 117,017.30 and 57,668.64 is: 79,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,851.84 : 117,017.30 = 57,668.64 : x
  2. Step 2: Convert to fraction form
    84,851.84/117,017.30 = 57,668.64/x
  3. Step 3: Cross multiply
    84,851.84x = 117,017.30 × 57,668.64
  4. Step 4: Simplify right side
    84,851.84x = 6,748,228,259.13
  5. Step 5: Solve for x
    x = 6,748,228,259.13/84,851.84
  6. Step 6: Final answer
    x = 79,529.55

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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.