Home / 61,814.86-85,280.37-40,329.88

Finding the Fourth Proportional to 61,814.86, 85,280.37 and 40,329.88

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Solution

The fourth proportional to 61,814.86, 85,280.37 and 40,329.88 is: 55,639.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,814.86 : 85,280.37 = 40,329.88 : x
  2. Step 2: Convert to fraction form
    61,814.86/85,280.37 = 40,329.88/x
  3. Step 3: Cross multiply
    61,814.86x = 85,280.37 × 40,329.88
  4. Step 4: Simplify right side
    61,814.86x = 3,439,347,088.46
  5. Step 5: Solve for x
    x = 3,439,347,088.46/61,814.86
  6. Step 6: Final answer
    x = 55,639.49

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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.