Home / 78,966.32-108,973.58-43,156.33

Finding the Fourth Proportional to 78,966.32, 108,973.58 and 43,156.33

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Solution

The fourth proportional to 78,966.32, 108,973.58 and 43,156.33 is: 59,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,966.32 : 108,973.58 = 43,156.33 : x
  2. Step 2: Convert to fraction form
    78,966.32/108,973.58 = 43,156.33/x
  3. Step 3: Cross multiply
    78,966.32x = 108,973.58 × 43,156.33
  4. Step 4: Simplify right side
    78,966.32x = 4,702,899,779.76
  5. Step 5: Solve for x
    x = 4,702,899,779.76/78,966.32
  6. Step 6: Final answer
    x = 59,555.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.