Home / 53,970.84-80,953.11-20,689.56

Finding the Fourth Proportional to 53,970.84, 80,953.11 and 20,689.56

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Solution

The fourth proportional to 53,970.84, 80,953.11 and 20,689.56 is: 31,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.84 : 80,953.11 = 20,689.56 : x
  2. Step 2: Convert to fraction form
    53,970.84/80,953.11 = 20,689.56/x
  3. Step 3: Cross multiply
    53,970.84x = 80,953.11 × 20,689.56
  4. Step 4: Simplify right side
    53,970.84x = 1,674,884,226.53
  5. Step 5: Solve for x
    x = 1,674,884,226.53/53,970.84
  6. Step 6: Final answer
    x = 31,033.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.