Home / 56,101.57-77,420.15-30,951.07

Finding the Fourth Proportional to 56,101.57, 77,420.15 and 30,951.07

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Solution

The fourth proportional to 56,101.57, 77,420.15 and 30,951.07 is: 42,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,101.57 : 77,420.15 = 30,951.07 : x
  2. Step 2: Convert to fraction form
    56,101.57/77,420.15 = 30,951.07/x
  3. Step 3: Cross multiply
    56,101.57x = 77,420.15 × 30,951.07
  4. Step 4: Simplify right side
    56,101.57x = 2,396,236,482.06
  5. Step 5: Solve for x
    x = 2,396,236,482.06/56,101.57
  6. Step 6: Final answer
    x = 42,712.47

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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.