Home / 90,642.70-125,090.43-62,022.35

Finding the Fourth Proportional to 90,642.70, 125,090.43 and 62,022.35

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Solution

The fourth proportional to 90,642.70, 125,090.43 and 62,022.35 is: 85,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,642.70 : 125,090.43 = 62,022.35 : x
  2. Step 2: Convert to fraction form
    90,642.70/125,090.43 = 62,022.35/x
  3. Step 3: Cross multiply
    90,642.70x = 125,090.43 × 62,022.35
  4. Step 4: Simplify right side
    90,642.70x = 7,758,402,431.11
  5. Step 5: Solve for x
    x = 7,758,402,431.11/90,642.70
  6. Step 6: Final answer
    x = 85,593.25

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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.