Home / 52,111.32-78,166.98-12,668.46

Finding the Fourth Proportional to 52,111.32, 78,166.98 and 12,668.46

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Solution

The fourth proportional to 52,111.32, 78,166.98 and 12,668.46 is: 19,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,111.32 : 78,166.98 = 12,668.46 : x
  2. Step 2: Convert to fraction form
    52,111.32/78,166.98 = 12,668.46/x
  3. Step 3: Cross multiply
    52,111.32x = 78,166.98 × 12,668.46
  4. Step 4: Simplify right side
    52,111.32x = 990,255,259.45
  5. Step 5: Solve for x
    x = 990,255,259.45/52,111.32
  6. Step 6: Final answer
    x = 19,002.69

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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.