Home / 56,716.48-78,267.84-31,566.40

Finding the Fourth Proportional to 56,716.48, 78,267.84 and 31,566.40

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Solution

The fourth proportional to 56,716.48, 78,267.84 and 31,566.40 is: 43,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.48 : 78,267.84 = 31,566.40 : x
  2. Step 2: Convert to fraction form
    56,716.48/78,267.84 = 31,566.40/x
  3. Step 3: Cross multiply
    56,716.48x = 78,267.84 × 31,566.40
  4. Step 4: Simplify right side
    56,716.48x = 2,470,633,944.58
  5. Step 5: Solve for x
    x = 2,470,633,944.58/56,716.48
  6. Step 6: Final answer
    x = 43,561.13

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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.