Home / 109,712.80-164,573.16-56,390.44

Finding the Fourth Proportional to 109,712.80, 164,573.16 and 56,390.44

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Solution

The fourth proportional to 109,712.80, 164,573.16 and 56,390.44 is: 84,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,712.80 : 164,573.16 = 56,390.44 : x
  2. Step 2: Convert to fraction form
    109,712.80/164,573.16 = 56,390.44/x
  3. Step 3: Cross multiply
    109,712.80x = 164,573.16 × 56,390.44
  4. Step 4: Simplify right side
    109,712.80x = 9,280,352,904.59
  5. Step 5: Solve for x
    x = 9,280,352,904.59/109,712.80
  6. Step 6: Final answer
    x = 84,587.70

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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.