Home / 56,838.08-78,434.74-31,345.51

Finding the Fourth Proportional to 56,838.08, 78,434.74 and 31,345.51

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Solution

The fourth proportional to 56,838.08, 78,434.74 and 31,345.51 is: 43,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,838.08 : 78,434.74 = 31,345.51 : x
  2. Step 2: Convert to fraction form
    56,838.08/78,434.74 = 31,345.51/x
  3. Step 3: Cross multiply
    56,838.08x = 78,434.74 × 31,345.51
  4. Step 4: Simplify right side
    56,838.08x = 2,458,576,927.02
  5. Step 5: Solve for x
    x = 2,458,576,927.02/56,838.08
  6. Step 6: Final answer
    x = 43,255.81

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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.