Home / 90,144.36-124,425.18-63,293.40

Finding the Fourth Proportional to 90,144.36, 124,425.18 and 63,293.40

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Solution

The fourth proportional to 90,144.36, 124,425.18 and 63,293.40 is: 87,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144.36 : 124,425.18 = 63,293.40 : x
  2. Step 2: Convert to fraction form
    90,144.36/124,425.18 = 63,293.40/x
  3. Step 3: Cross multiply
    90,144.36x = 124,425.18 × 63,293.40
  4. Step 4: Simplify right side
    90,144.36x = 7,875,292,687.81
  5. Step 5: Solve for x
    x = 7,875,292,687.81/90,144.36
  6. Step 6: Final answer
    x = 87,363.12

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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.