Home / 52,106.32-78,159.48-12,663.46

Finding the Fourth Proportional to 52,106.32, 78,159.48 and 12,663.46

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Solution

The fourth proportional to 52,106.32, 78,159.48 and 12,663.46 is: 18,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,106.32 : 78,159.48 = 12,663.46 : x
  2. Step 2: Convert to fraction form
    52,106.32/78,159.48 = 12,663.46/x
  3. Step 3: Cross multiply
    52,106.32x = 78,159.48 × 12,663.46
  4. Step 4: Simplify right side
    52,106.32x = 989,769,448.60
  5. Step 5: Solve for x
    x = 989,769,448.60/52,106.32
  6. Step 6: Final answer
    x = 18,995.19

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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.