Home / 48,007.76-66,221.58-30,985.28

Finding the Fourth Proportional to 48,007.76, 66,221.58 and 30,985.28

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Solution

The fourth proportional to 48,007.76, 66,221.58 and 30,985.28 is: 42,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,007.76 : 66,221.58 = 30,985.28 : x
  2. Step 2: Convert to fraction form
    48,007.76/66,221.58 = 30,985.28/x
  3. Step 3: Cross multiply
    48,007.76x = 66,221.58 × 30,985.28
  4. Step 4: Simplify right side
    48,007.76x = 2,051,894,198.34
  5. Step 5: Solve for x
    x = 2,051,894,198.34/48,007.76
  6. Step 6: Final answer
    x = 42,740.89

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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.