Home / 45,675.72-68,521.43-15,688.53

Finding the Fourth Proportional to 45,675.72, 68,521.43 and 15,688.53

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Solution

The fourth proportional to 45,675.72, 68,521.43 and 15,688.53 is: 23,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,675.72 : 68,521.43 = 15,688.53 : x
  2. Step 2: Convert to fraction form
    45,675.72/68,521.43 = 15,688.53/x
  3. Step 3: Cross multiply
    45,675.72x = 68,521.43 × 15,688.53
  4. Step 4: Simplify right side
    45,675.72x = 1,075,000,549.42
  5. Step 5: Solve for x
    x = 1,075,000,549.42/45,675.72
  6. Step 6: Final answer
    x = 23,535.49

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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.