Home / 53,776.31-74,219.36-38,718.81

Finding the Fourth Proportional to 53,776.31, 74,219.36 and 38,718.81

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Solution

The fourth proportional to 53,776.31, 74,219.36 and 38,718.81 is: 53,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,776.31 : 74,219.36 = 38,718.81 : x
  2. Step 2: Convert to fraction form
    53,776.31/74,219.36 = 38,718.81/x
  3. Step 3: Cross multiply
    53,776.31x = 74,219.36 × 38,718.81
  4. Step 4: Simplify right side
    53,776.31x = 2,873,685,104.57
  5. Step 5: Solve for x
    x = 2,873,685,104.57/53,776.31
  6. Step 6: Final answer
    x = 53,437.76

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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.