Home / 81,488.76-112,461.51-45,685.68

Finding the Fourth Proportional to 81,488.76, 112,461.51 and 45,685.68

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Solution

The fourth proportional to 81,488.76, 112,461.51 and 45,685.68 is: 63,050.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,488.76 : 112,461.51 = 45,685.68 : x
  2. Step 2: Convert to fraction form
    81,488.76/112,461.51 = 45,685.68/x
  3. Step 3: Cross multiply
    81,488.76x = 112,461.51 × 45,685.68
  4. Step 4: Simplify right side
    81,488.76x = 5,137,880,558.18
  5. Step 5: Solve for x
    x = 5,137,880,558.18/81,488.76
  6. Step 6: Final answer
    x = 63,050.17

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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.