Home / 74,431-111,507.84-36,948.40

Finding the Fourth Proportional to 74,431, 111,507.84 and 36,948.40

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Solution

The fourth proportional to 74,431, 111,507.84 and 36,948.40 is: 55,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431 : 111,507.84 = 36,948.40 : x
  2. Step 2: Convert to fraction form
    74,431/111,507.84 = 36,948.40/x
  3. Step 3: Cross multiply
    74,431x = 111,507.84 × 36,948.40
  4. Step 4: Simplify right side
    74,431x = 4,120,036,275.46
  5. Step 5: Solve for x
    x = 4,120,036,275.46/74,431
  6. Step 6: Final answer
    x = 55,353.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.