Home / 56,827.86-78,421.81-31,336.45

Finding the Fourth Proportional to 56,827.86, 78,421.81 and 31,336.45

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Solution

The fourth proportional to 56,827.86, 78,421.81 and 31,336.45 is: 43,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,827.86 : 78,421.81 = 31,336.45 : x
  2. Step 2: Convert to fraction form
    56,827.86/78,421.81 = 31,336.45/x
  3. Step 3: Cross multiply
    56,827.86x = 78,421.81 × 31,336.45
  4. Step 4: Simplify right side
    56,827.86x = 2,457,461,127.97
  5. Step 5: Solve for x
    x = 2,457,461,127.97/56,827.86
  6. Step 6: Final answer
    x = 43,243.95

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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.