Home / 65,436.19-90,358.08-63,320.27

Finding the Fourth Proportional to 65,436.19, 90,358.08 and 63,320.27

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Solution

The fourth proportional to 65,436.19, 90,358.08 and 63,320.27 is: 87,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,436.19 : 90,358.08 = 63,320.27 : x
  2. Step 2: Convert to fraction form
    65,436.19/90,358.08 = 63,320.27/x
  3. Step 3: Cross multiply
    65,436.19x = 90,358.08 × 63,320.27
  4. Step 4: Simplify right side
    65,436.19x = 5,721,498,022.28
  5. Step 5: Solve for x
    x = 5,721,498,022.28/65,436.19
  6. Step 6: Final answer
    x = 87,436.30

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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.