Home / 53,111.49-79,639.79-15,666.80

Finding the Fourth Proportional to 53,111.49, 79,639.79 and 15,666.80

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Solution

The fourth proportional to 53,111.49, 79,639.79 and 15,666.80 is: 23,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,111.49 : 79,639.79 = 15,666.80 : x
  2. Step 2: Convert to fraction form
    53,111.49/79,639.79 = 15,666.80/x
  3. Step 3: Cross multiply
    53,111.49x = 79,639.79 × 15,666.80
  4. Step 4: Simplify right side
    53,111.49x = 1,247,700,661.97
  5. Step 5: Solve for x
    x = 1,247,700,661.97/53,111.49
  6. Step 6: Final answer
    x = 23,492.10

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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.