Home / 56,934.06-78,567.75-31,438.86

Finding the Fourth Proportional to 56,934.06, 78,567.75 and 31,438.86

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Solution

The fourth proportional to 56,934.06, 78,567.75 and 31,438.86 is: 43,384.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,934.06 : 78,567.75 = 31,438.86 : x
  2. Step 2: Convert to fraction form
    56,934.06/78,567.75 = 31,438.86/x
  3. Step 3: Cross multiply
    56,934.06x = 78,567.75 × 31,438.86
  4. Step 4: Simplify right side
    56,934.06x = 2,470,080,492.77
  5. Step 5: Solve for x
    x = 2,470,080,492.77/56,934.06
  6. Step 6: Final answer
    x = 43,384.94

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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.