Home / 67,188.48-92,710.32-40,325.28

Finding the Fourth Proportional to 67,188.48, 92,710.32 and 40,325.28

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Solution

The fourth proportional to 67,188.48, 92,710.32 and 40,325.28 is: 55,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,188.48 : 92,710.32 = 40,325.28 : x
  2. Step 2: Convert to fraction form
    67,188.48/92,710.32 = 40,325.28/x
  3. Step 3: Cross multiply
    67,188.48x = 92,710.32 × 40,325.28
  4. Step 4: Simplify right side
    67,188.48x = 3,738,569,612.89
  5. Step 5: Solve for x
    x = 3,738,569,612.89/67,188.48
  6. Step 6: Final answer
    x = 55,643.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.