Home / 56,622.91-78,137.70-31,471.87

Finding the Fourth Proportional to 56,622.91, 78,137.70 and 31,471.87

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Solution

The fourth proportional to 56,622.91, 78,137.70 and 31,471.87 is: 43,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,622.91 : 78,137.70 = 31,471.87 : x
  2. Step 2: Convert to fraction form
    56,622.91/78,137.70 = 31,471.87/x
  3. Step 3: Cross multiply
    56,622.91x = 78,137.70 × 31,471.87
  4. Step 4: Simplify right side
    56,622.91x = 2,459,139,536.50
  5. Step 5: Solve for x
    x = 2,459,139,536.50/56,622.91
  6. Step 6: Final answer
    x = 43,430.12

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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.