Home / 77,940.04-107,531.88-47,693.80

Finding the Fourth Proportional to 77,940.04, 107,531.88 and 47,693.80

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Solution

The fourth proportional to 77,940.04, 107,531.88 and 47,693.80 is: 65,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,940.04 : 107,531.88 = 47,693.80 : x
  2. Step 2: Convert to fraction form
    77,940.04/107,531.88 = 47,693.80/x
  3. Step 3: Cross multiply
    77,940.04x = 107,531.88 × 47,693.80
  4. Step 4: Simplify right side
    77,940.04x = 5,128,603,978.34
  5. Step 5: Solve for x
    x = 5,128,603,978.34/77,940.04
  6. Step 6: Final answer
    x = 65,801.92

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1.5x scale

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.