Home / 56,005.17-77,287.12-30,854.67

Finding the Fourth Proportional to 56,005.17, 77,287.12 and 30,854.67

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Solution

The fourth proportional to 56,005.17, 77,287.12 and 30,854.67 is: 42,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,005.17 : 77,287.12 = 30,854.67 : x
  2. Step 2: Convert to fraction form
    56,005.17/77,287.12 = 30,854.67/x
  3. Step 3: Cross multiply
    56,005.17x = 77,287.12 × 30,854.67
  4. Step 4: Simplify right side
    56,005.17x = 2,384,668,505.71
  5. Step 5: Solve for x
    x = 2,384,668,505.71/56,005.17
  6. Step 6: Final answer
    x = 42,579.44

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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.