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Finding the Fourth Proportional to 77,610.69, 107,094.69 and 47,403.36

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Solution

The fourth proportional to 77,610.69, 107,094.69 and 47,403.36 is: 65,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,610.69 : 107,094.69 = 47,403.36 : x
  2. Step 2: Convert to fraction form
    77,610.69/107,094.69 = 47,403.36/x
  3. Step 3: Cross multiply
    77,610.69x = 107,094.69 × 47,403.36
  4. Step 4: Simplify right side
    77,610.69x = 5,076,648,144.16
  5. Step 5: Solve for x
    x = 5,076,648,144.16/77,610.69
  6. Step 6: Final answer
    x = 65,411.71

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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.