Home / 211,112.48-316,639.44-53,331.20

Finding the Fourth Proportional to 211,112.48, 316,639.44 and 53,331.20

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Solution

The fourth proportional to 211,112.48, 316,639.44 and 53,331.20 is: 79,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,112.48 : 316,639.44 = 53,331.20 : x
  2. Step 2: Convert to fraction form
    211,112.48/316,639.44 = 53,331.20/x
  3. Step 3: Cross multiply
    211,112.48x = 316,639.44 × 53,331.20
  4. Step 4: Simplify right side
    211,112.48x = 16,886,761,302.53
  5. Step 5: Solve for x
    x = 16,886,761,302.53/211,112.48
  6. Step 6: Final answer
    x = 79,989.40

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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.