Home / 53,655.65-74,053.96-30,990.56

Finding the Fourth Proportional to 53,655.65, 74,053.96 and 30,990.56

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Solution

The fourth proportional to 53,655.65, 74,053.96 and 30,990.56 is: 42,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,655.65 : 74,053.96 = 30,990.56 : x
  2. Step 2: Convert to fraction form
    53,655.65/74,053.96 = 30,990.56/x
  3. Step 3: Cross multiply
    53,655.65x = 74,053.96 × 30,990.56
  4. Step 4: Simplify right side
    53,655.65x = 2,294,973,690.62
  5. Step 5: Solve for x
    x = 2,294,973,690.62/53,655.65
  6. Step 6: Final answer
    x = 42,772.27

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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.