Home / 64,785.36-89,426.16-37,936.50

Finding the Fourth Proportional to 64,785.36, 89,426.16 and 37,936.50

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Solution

The fourth proportional to 64,785.36, 89,426.16 and 37,936.50 is: 52,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,785.36 : 89,426.16 = 37,936.50 : x
  2. Step 2: Convert to fraction form
    64,785.36/89,426.16 = 37,936.50/x
  3. Step 3: Cross multiply
    64,785.36x = 89,426.16 × 37,936.50
  4. Step 4: Simplify right side
    64,785.36x = 3,392,515,518.84
  5. Step 5: Solve for x
    x = 3,392,515,518.84/64,785.36
  6. Step 6: Final answer
    x = 52,365.47

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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.