Home / 56,359.17-77,778-31,208.67

Finding the Fourth Proportional to 56,359.17, 77,778 and 31,208.67

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Solution

The fourth proportional to 56,359.17, 77,778 and 31,208.67 is: 43,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.17 : 77,778 = 31,208.67 : x
  2. Step 2: Convert to fraction form
    56,359.17/77,778 = 31,208.67/x
  3. Step 3: Cross multiply
    56,359.17x = 77,778 × 31,208.67
  4. Step 4: Simplify right side
    56,359.17x = 2,427,347,935.26
  5. Step 5: Solve for x
    x = 2,427,347,935.26/56,359.17
  6. Step 6: Final answer
    x = 43,069.26

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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.