Home / 85,739.74-118,320.61-47,499.36

Finding the Fourth Proportional to 85,739.74, 118,320.61 and 47,499.36

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Solution

The fourth proportional to 85,739.74, 118,320.61 and 47,499.36 is: 65,548.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.74 : 118,320.61 = 47,499.36 : x
  2. Step 2: Convert to fraction form
    85,739.74/118,320.61 = 47,499.36/x
  3. Step 3: Cross multiply
    85,739.74x = 118,320.61 × 47,499.36
  4. Step 4: Simplify right side
    85,739.74x = 5,620,153,249.81
  5. Step 5: Solve for x
    x = 5,620,153,249.81/85,739.74
  6. Step 6: Final answer
    x = 65,548.99

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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.