Home / 56,606.86-78,117.63-31,115.84

Finding the Fourth Proportional to 56,606.86, 78,117.63 and 31,115.84

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Solution

The fourth proportional to 56,606.86, 78,117.63 and 31,115.84 is: 42,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,606.86 : 78,117.63 = 31,115.84 : x
  2. Step 2: Convert to fraction form
    56,606.86/78,117.63 = 31,115.84/x
  3. Step 3: Cross multiply
    56,606.86x = 78,117.63 × 31,115.84
  4. Step 4: Simplify right side
    56,606.86x = 2,430,695,168.99
  5. Step 5: Solve for x
    x = 2,430,695,168.99/56,606.86
  6. Step 6: Final answer
    x = 42,939.94

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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.