Home / 56,303.08-77,694.18-31,153

Finding the Fourth Proportional to 56,303.08, 77,694.18 and 31,153

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Solution

The fourth proportional to 56,303.08, 77,694.18 and 31,153 is: 42,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,303.08 : 77,694.18 = 31,153 : x
  2. Step 2: Convert to fraction form
    56,303.08/77,694.18 = 31,153/x
  3. Step 3: Cross multiply
    56,303.08x = 77,694.18 × 31,153
  4. Step 4: Simplify right side
    56,303.08x = 2,420,406,789.54
  5. Step 5: Solve for x
    x = 2,420,406,789.54/56,303.08
  6. Step 6: Final answer
    x = 42,988.89

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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.