Home / 55,007.71-75,908.34-31,135.70

Finding the Fourth Proportional to 55,007.71, 75,908.34 and 31,135.70

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Solution

The fourth proportional to 55,007.71, 75,908.34 and 31,135.70 is: 42,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007.71 : 75,908.34 = 31,135.70 : x
  2. Step 2: Convert to fraction form
    55,007.71/75,908.34 = 31,135.70/x
  3. Step 3: Cross multiply
    55,007.71x = 75,908.34 × 31,135.70
  4. Step 4: Simplify right side
    55,007.71x = 2,363,459,491.51
  5. Step 5: Solve for x
    x = 2,363,459,491.51/55,007.71
  6. Step 6: Final answer
    x = 42,965.97

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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.