Home / 85,812.48-118,415.25-47,571.66

Finding the Fourth Proportional to 85,812.48, 118,415.25 and 47,571.66

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Solution

The fourth proportional to 85,812.48, 118,415.25 and 47,571.66 is: 65,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812.48 : 118,415.25 = 47,571.66 : x
  2. Step 2: Convert to fraction form
    85,812.48/118,415.25 = 47,571.66/x
  3. Step 3: Cross multiply
    85,812.48x = 118,415.25 × 47,571.66
  4. Step 4: Simplify right side
    85,812.48x = 5,633,210,011.82
  5. Step 5: Solve for x
    x = 5,633,210,011.82/85,812.48
  6. Step 6: Final answer
    x = 65,645.58

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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.