Home / 78,982.98-118,461.65-26,392.38

Finding the Fourth Proportional to 78,982.98, 118,461.65 and 26,392.38

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Solution

The fourth proportional to 78,982.98, 118,461.65 and 26,392.38 is: 39,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,982.98 : 118,461.65 = 26,392.38 : x
  2. Step 2: Convert to fraction form
    78,982.98/118,461.65 = 26,392.38/x
  3. Step 3: Cross multiply
    78,982.98x = 118,461.65 × 26,392.38
  4. Step 4: Simplify right side
    78,982.98x = 3,126,484,750.27
  5. Step 5: Solve for x
    x = 3,126,484,750.27/78,982.98
  6. Step 6: Final answer
    x = 39,584.28

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1.5x scale

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.