Home / 53,319.31-79,909.59-21,692.51

Finding the Fourth Proportional to 53,319.31, 79,909.59 and 21,692.51

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Solution

The fourth proportional to 53,319.31, 79,909.59 and 21,692.51 is: 32,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,319.31 : 79,909.59 = 21,692.51 : x
  2. Step 2: Convert to fraction form
    53,319.31/79,909.59 = 21,692.51/x
  3. Step 3: Cross multiply
    53,319.31x = 79,909.59 × 21,692.51
  4. Step 4: Simplify right side
    53,319.31x = 1,733,439,439.61
  5. Step 5: Solve for x
    x = 1,733,439,439.61/53,319.31
  6. Step 6: Final answer
    x = 32,510.54

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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.