Home / 90,186.75-124,457.31-51,932.34

Finding the Fourth Proportional to 90,186.75, 124,457.31 and 51,932.34

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Solution

The fourth proportional to 90,186.75, 124,457.31 and 51,932.34 is: 71,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.75 : 124,457.31 = 51,932.34 : x
  2. Step 2: Convert to fraction form
    90,186.75/124,457.31 = 51,932.34/x
  3. Step 3: Cross multiply
    90,186.75x = 124,457.31 × 51,932.34
  4. Step 4: Simplify right side
    90,186.75x = 6,463,359,338.41
  5. Step 5: Solve for x
    x = 6,463,359,338.41/90,186.75
  6. Step 6: Final answer
    x = 71,666.40

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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.