Home / 85,614.07-118,139.36-57,962.49

Finding the Fourth Proportional to 85,614.07, 118,139.36 and 57,962.49

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Solution

The fourth proportional to 85,614.07, 118,139.36 and 57,962.49 is: 79,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,614.07 : 118,139.36 = 57,962.49 : x
  2. Step 2: Convert to fraction form
    85,614.07/118,139.36 = 57,962.49/x
  3. Step 3: Cross multiply
    85,614.07x = 118,139.36 × 57,962.49
  4. Step 4: Simplify right side
    85,614.07x = 6,847,651,617.51
  5. Step 5: Solve for x
    x = 6,847,651,617.51/85,614.07
  6. Step 6: Final answer
    x = 79,982.79

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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.