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Finding the Fourth Proportional to 64,860.80, 97,291.56 and 18,114.08

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Solution

The fourth proportional to 64,860.80, 97,291.56 and 18,114.08 is: 27,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,860.80 : 97,291.56 = 18,114.08 : x
  2. Step 2: Convert to fraction form
    64,860.80/97,291.56 = 18,114.08/x
  3. Step 3: Cross multiply
    64,860.80x = 97,291.56 × 18,114.08
  4. Step 4: Simplify right side
    64,860.80x = 1,762,347,101.16
  5. Step 5: Solve for x
    x = 1,762,347,101.16/64,860.80
  6. Step 6: Final answer
    x = 27,171.22

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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.