Home / 56,859.68-78,465.38-31,368.48

Finding the Fourth Proportional to 56,859.68, 78,465.38 and 31,368.48

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Solution

The fourth proportional to 56,859.68, 78,465.38 and 31,368.48 is: 43,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,859.68 : 78,465.38 = 31,368.48 : x
  2. Step 2: Convert to fraction form
    56,859.68/78,465.38 = 31,368.48/x
  3. Step 3: Cross multiply
    56,859.68x = 78,465.38 × 31,368.48
  4. Step 4: Simplify right side
    56,859.68x = 2,461,339,703.22
  5. Step 5: Solve for x
    x = 2,461,339,703.22/56,859.68
  6. Step 6: Final answer
    x = 43,287.97

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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.