Home / 81,563.76-112,547.88-45,748.80

Finding the Fourth Proportional to 81,563.76, 112,547.88 and 45,748.80

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Solution

The fourth proportional to 81,563.76, 112,547.88 and 45,748.80 is: 63,127.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,563.76 : 112,547.88 = 45,748.80 : x
  2. Step 2: Convert to fraction form
    81,563.76/112,547.88 = 45,748.80/x
  3. Step 3: Cross multiply
    81,563.76x = 112,547.88 × 45,748.80
  4. Step 4: Simplify right side
    81,563.76x = 5,148,930,452.54
  5. Step 5: Solve for x
    x = 5,148,930,452.54/81,563.76
  6. Step 6: Final answer
    x = 63,127.67

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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.