Home / 50,802.31-70,141.43-31,711.16

Finding the Fourth Proportional to 50,802.31, 70,141.43 and 31,711.16

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Solution

The fourth proportional to 50,802.31, 70,141.43 and 31,711.16 is: 43,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,802.31 : 70,141.43 = 31,711.16 : x
  2. Step 2: Convert to fraction form
    50,802.31/70,141.43 = 31,711.16/x
  3. Step 3: Cross multiply
    50,802.31x = 70,141.43 × 31,711.16
  4. Step 4: Simplify right side
    50,802.31x = 2,224,266,109.36
  5. Step 5: Solve for x
    x = 2,224,266,109.36/50,802.31
  6. Step 6: Final answer
    x = 43,782.78

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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.