Home / 81,821.12-112,913.28-46,011.44

Finding the Fourth Proportional to 81,821.12, 112,913.28 and 46,011.44

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Solution

The fourth proportional to 81,821.12, 112,913.28 and 46,011.44 is: 63,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,821.12 : 112,913.28 = 46,011.44 : x
  2. Step 2: Convert to fraction form
    81,821.12/112,913.28 = 46,011.44/x
  3. Step 3: Cross multiply
    81,821.12x = 112,913.28 × 46,011.44
  4. Step 4: Simplify right side
    81,821.12x = 5,195,302,607.92
  5. Step 5: Solve for x
    x = 5,195,302,607.92/81,821.12
  6. Step 6: Final answer
    x = 63,495.86

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1.5x scale

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.