Home / 56,880.27-78,495.03-31,386.96

Finding the Fourth Proportional to 56,880.27, 78,495.03 and 31,386.96

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Solution

The fourth proportional to 56,880.27, 78,495.03 and 31,386.96 is: 43,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.27 : 78,495.03 = 31,386.96 : x
  2. Step 2: Convert to fraction form
    56,880.27/78,495.03 = 31,386.96/x
  3. Step 3: Cross multiply
    56,880.27x = 78,495.03 × 31,386.96
  4. Step 4: Simplify right side
    56,880.27x = 2,463,720,366.81
  5. Step 5: Solve for x
    x = 2,463,720,366.81/56,880.27
  6. Step 6: Final answer
    x = 43,314.15

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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.