Home / 52,688.20-78,840.30-38,864.20

Finding the Fourth Proportional to 52,688.20, 78,840.30 and 38,864.20

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Solution

The fourth proportional to 52,688.20, 78,840.30 and 38,864.20 is: 58,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,688.20 : 78,840.30 = 38,864.20 : x
  2. Step 2: Convert to fraction form
    52,688.20/78,840.30 = 38,864.20/x
  3. Step 3: Cross multiply
    52,688.20x = 78,840.30 × 38,864.20
  4. Step 4: Simplify right side
    52,688.20x = 3,064,065,187.26
  5. Step 5: Solve for x
    x = 3,064,065,187.26/52,688.20
  6. Step 6: Final answer
    x = 58,154.68

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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.