Home / 53,215.65-73,432.17-30,549.20

Finding the Fourth Proportional to 53,215.65, 73,432.17 and 30,549.20

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Solution

The fourth proportional to 53,215.65, 73,432.17 and 30,549.20 is: 42,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.65 : 73,432.17 = 30,549.20 : x
  2. Step 2: Convert to fraction form
    53,215.65/73,432.17 = 30,549.20/x
  3. Step 3: Cross multiply
    53,215.65x = 73,432.17 × 30,549.20
  4. Step 4: Simplify right side
    53,215.65x = 2,243,293,680.60
  5. Step 5: Solve for x
    x = 2,243,293,680.60/53,215.65
  6. Step 6: Final answer
    x = 42,154.77

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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.