Home / 43,301.40-64,953.72-12,135.84

Finding the Fourth Proportional to 43,301.40, 64,953.72 and 12,135.84

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Solution

The fourth proportional to 43,301.40, 64,953.72 and 12,135.84 is: 18,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,301.40 : 64,953.72 = 12,135.84 : x
  2. Step 2: Convert to fraction form
    43,301.40/64,953.72 = 12,135.84/x
  3. Step 3: Cross multiply
    43,301.40x = 64,953.72 × 12,135.84
  4. Step 4: Simplify right side
    43,301.40x = 788,267,953.32
  5. Step 5: Solve for x
    x = 788,267,953.32/43,301.40
  6. Step 6: Final answer
    x = 18,204.21

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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.