Home / 52,354.02-78,530.67-21,188.82

Finding the Fourth Proportional to 52,354.02, 78,530.67 and 21,188.82

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Solution

The fourth proportional to 52,354.02, 78,530.67 and 21,188.82 is: 31,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,354.02 : 78,530.67 = 21,188.82 : x
  2. Step 2: Convert to fraction form
    52,354.02/78,530.67 = 21,188.82/x
  3. Step 3: Cross multiply
    52,354.02x = 78,530.67 × 21,188.82
  4. Step 4: Simplify right side
    52,354.02x = 1,663,972,231.11
  5. Step 5: Solve for x
    x = 1,663,972,231.11/52,354.02
  6. Step 6: Final answer
    x = 31,783.08

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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.