Home / 90,087.68-124,320.31-51,854.74

Finding the Fourth Proportional to 90,087.68, 124,320.31 and 51,854.74

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Solution

The fourth proportional to 90,087.68, 124,320.31 and 51,854.74 is: 71,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,087.68 : 124,320.31 = 51,854.74 : x
  2. Step 2: Convert to fraction form
    90,087.68/124,320.31 = 51,854.74/x
  3. Step 3: Cross multiply
    90,087.68x = 124,320.31 × 51,854.74
  4. Step 4: Simplify right side
    90,087.68x = 6,446,596,911.33
  5. Step 5: Solve for x
    x = 6,446,596,911.33/90,087.68
  6. Step 6: Final answer
    x = 71,559.14

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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.