Home / 53,412.49-80,111.76-13,972.63

Finding the Fourth Proportional to 53,412.49, 80,111.76 and 13,972.63

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Solution

The fourth proportional to 53,412.49, 80,111.76 and 13,972.63 is: 20,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,412.49 : 80,111.76 = 13,972.63 : x
  2. Step 2: Convert to fraction form
    53,412.49/80,111.76 = 13,972.63/x
  3. Step 3: Cross multiply
    53,412.49x = 80,111.76 × 13,972.63
  4. Step 4: Simplify right side
    53,412.49x = 1,119,371,981.13
  5. Step 5: Solve for x
    x = 1,119,371,981.13/53,412.49
  6. Step 6: Final answer
    x = 20,957.12

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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.