Home / 78,731.49-118,096.70-19,567.07

Finding the Fourth Proportional to 78,731.49, 118,096.70 and 19,567.07

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Solution

The fourth proportional to 78,731.49, 118,096.70 and 19,567.07 is: 29,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731.49 : 118,096.70 = 19,567.07 : x
  2. Step 2: Convert to fraction form
    78,731.49/118,096.70 = 19,567.07/x
  3. Step 3: Cross multiply
    78,731.49x = 118,096.70 × 19,567.07
  4. Step 4: Simplify right side
    78,731.49x = 2,310,806,260.28
  5. Step 5: Solve for x
    x = 2,310,806,260.28/78,731.49
  6. Step 6: Final answer
    x = 29,350.47

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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.