Home / 56,442.17-77,890.30-31,291.67

Finding the Fourth Proportional to 56,442.17, 77,890.30 and 31,291.67

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Solution

The fourth proportional to 56,442.17, 77,890.30 and 31,291.67 is: 43,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,442.17 : 77,890.30 = 31,291.67 : x
  2. Step 2: Convert to fraction form
    56,442.17/77,890.30 = 31,291.67/x
  3. Step 3: Cross multiply
    56,442.17x = 77,890.30 × 31,291.67
  4. Step 4: Simplify right side
    56,442.17x = 2,437,317,096.12
  5. Step 5: Solve for x
    x = 2,437,317,096.12/56,442.17
  6. Step 6: Final answer
    x = 43,182.56

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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.