Home / 77,313.28-115,923.36-42,204.16

Finding the Fourth Proportional to 77,313.28, 115,923.36 and 42,204.16

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Solution

The fourth proportional to 77,313.28, 115,923.36 and 42,204.16 is: 63,280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,313.28 : 115,923.36 = 42,204.16 : x
  2. Step 2: Convert to fraction form
    77,313.28/115,923.36 = 42,204.16/x
  3. Step 3: Cross multiply
    77,313.28x = 115,923.36 × 42,204.16
  4. Step 4: Simplify right side
    77,313.28x = 4,892,448,033.18
  5. Step 5: Solve for x
    x = 4,892,448,033.18/77,313.28
  6. Step 6: Final answer
    x = 63,280.82

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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.