Home / 56,296.70-77,688.87-31,146.38

Finding the Fourth Proportional to 56,296.70, 77,688.87 and 31,146.38

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Solution

The fourth proportional to 56,296.70, 77,688.87 and 31,146.38 is: 42,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,296.70 : 77,688.87 = 31,146.38 : x
  2. Step 2: Convert to fraction form
    56,296.70/77,688.87 = 31,146.38/x
  3. Step 3: Cross multiply
    56,296.70x = 77,688.87 × 31,146.38
  4. Step 4: Simplify right side
    56,296.70x = 2,419,727,066.79
  5. Step 5: Solve for x
    x = 2,419,727,066.79/56,296.70
  6. Step 6: Final answer
    x = 42,981.69

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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.