Home / 84,990.51-117,313.65-58,122.81

Finding the Fourth Proportional to 84,990.51, 117,313.65 and 58,122.81

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Solution

The fourth proportional to 84,990.51, 117,313.65 and 58,122.81 is: 80,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.51 : 117,313.65 = 58,122.81 : x
  2. Step 2: Convert to fraction form
    84,990.51/117,313.65 = 58,122.81/x
  3. Step 3: Cross multiply
    84,990.51x = 117,313.65 × 58,122.81
  4. Step 4: Simplify right side
    84,990.51x = 6,818,598,989.36
  5. Step 5: Solve for x
    x = 6,818,598,989.36/84,990.51
  6. Step 6: Final answer
    x = 80,227.77

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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.