Home / 42,707.98-64,120.29-28,677.16

Finding the Fourth Proportional to 42,707.98, 64,120.29 and 28,677.16

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Solution

The fourth proportional to 42,707.98, 64,120.29 and 28,677.16 is: 43,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707.98 : 64,120.29 = 28,677.16 : x
  2. Step 2: Convert to fraction form
    42,707.98/64,120.29 = 28,677.16/x
  3. Step 3: Cross multiply
    42,707.98x = 64,120.29 × 28,677.16
  4. Step 4: Simplify right side
    42,707.98x = 1,838,787,815.58
  5. Step 5: Solve for x
    x = 1,838,787,815.58/42,707.98
  6. Step 6: Final answer
    x = 43,054.90

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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.