Home / 42,739.92-64,047.51-30,253.16

Finding the Fourth Proportional to 42,739.92, 64,047.51 and 30,253.16

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Solution

The fourth proportional to 42,739.92, 64,047.51 and 30,253.16 is: 45,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,739.92 : 64,047.51 = 30,253.16 : x
  2. Step 2: Convert to fraction form
    42,739.92/64,047.51 = 30,253.16/x
  3. Step 3: Cross multiply
    42,739.92x = 64,047.51 × 30,253.16
  4. Step 4: Simplify right side
    42,739.92x = 1,937,639,727.75
  5. Step 5: Solve for x
    x = 1,937,639,727.75/42,739.92
  6. Step 6: Final answer
    x = 45,335.60

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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.