Home / 83,538.76-115,283.64-45,813.28

Finding the Fourth Proportional to 83,538.76, 115,283.64 and 45,813.28

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Solution

The fourth proportional to 83,538.76, 115,283.64 and 45,813.28 is: 63,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,538.76 : 115,283.64 = 45,813.28 : x
  2. Step 2: Convert to fraction form
    83,538.76/115,283.64 = 45,813.28/x
  3. Step 3: Cross multiply
    83,538.76x = 115,283.64 × 45,813.28
  4. Step 4: Simplify right side
    83,538.76x = 5,281,521,678.74
  5. Step 5: Solve for x
    x = 5,281,521,678.74/83,538.76
  6. Step 6: Final answer
    x = 63,222.41

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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.