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Finding the Fourth Proportional to 53,012.69, 79,518.99 and 13,569.74

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Solution

The fourth proportional to 53,012.69, 79,518.99 and 13,569.74 is: 20,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012.69 : 79,518.99 = 13,569.74 : x
  2. Step 2: Convert to fraction form
    53,012.69/79,518.99 = 13,569.74/x
  3. Step 3: Cross multiply
    53,012.69x = 79,518.99 × 13,569.74
  4. Step 4: Simplify right side
    53,012.69x = 1,079,052,019.36
  5. Step 5: Solve for x
    x = 1,079,052,019.36/53,012.69
  6. Step 6: Final answer
    x = 20,354.60

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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.