Home / 65,623.32-90,539.40-38,775.24

Finding the Fourth Proportional to 65,623.32, 90,539.40 and 38,775.24

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Solution

The fourth proportional to 65,623.32, 90,539.40 and 38,775.24 is: 53,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.32 : 90,539.40 = 38,775.24 : x
  2. Step 2: Convert to fraction form
    65,623.32/90,539.40 = 38,775.24/x
  3. Step 3: Cross multiply
    65,623.32x = 90,539.40 × 38,775.24
  4. Step 4: Simplify right side
    65,623.32x = 3,510,686,964.46
  5. Step 5: Solve for x
    x = 3,510,686,964.46/65,623.32
  6. Step 6: Final answer
    x = 53,497.55

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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.