Home / 67,800.21-93,567.08-39,128.64

Finding the Fourth Proportional to 67,800.21, 93,567.08 and 39,128.64

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Solution

The fourth proportional to 67,800.21, 93,567.08 and 39,128.64 is: 53,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,800.21 : 93,567.08 = 39,128.64 : x
  2. Step 2: Convert to fraction form
    67,800.21/93,567.08 = 39,128.64/x
  3. Step 3: Cross multiply
    67,800.21x = 93,567.08 × 39,128.64
  4. Step 4: Simplify right side
    67,800.21x = 3,661,152,393.53
  5. Step 5: Solve for x
    x = 3,661,152,393.53/67,800.21
  6. Step 6: Final answer
    x = 53,999.13

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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.