Home / 90,429.84-124,799.40-50,147.28

Finding the Fourth Proportional to 90,429.84, 124,799.40 and 50,147.28

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Solution

The fourth proportional to 90,429.84, 124,799.40 and 50,147.28 is: 69,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,429.84 : 124,799.40 = 50,147.28 : x
  2. Step 2: Convert to fraction form
    90,429.84/124,799.40 = 50,147.28/x
  3. Step 3: Cross multiply
    90,429.84x = 124,799.40 × 50,147.28
  4. Step 4: Simplify right side
    90,429.84x = 6,258,350,455.63
  5. Step 5: Solve for x
    x = 6,258,350,455.63/90,429.84
  6. Step 6: Final answer
    x = 69,206.70

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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.