Home / 56,801.53-78,389.54-31,307.86

Finding the Fourth Proportional to 56,801.53, 78,389.54 and 31,307.86

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Solution

The fourth proportional to 56,801.53, 78,389.54 and 31,307.86 is: 43,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,801.53 : 78,389.54 = 31,307.86 : x
  2. Step 2: Convert to fraction form
    56,801.53/78,389.54 = 31,307.86/x
  3. Step 3: Cross multiply
    56,801.53x = 78,389.54 × 31,307.86
  4. Step 4: Simplify right side
    56,801.53x = 2,454,208,587.25
  5. Step 5: Solve for x
    x = 2,454,208,587.25/56,801.53
  6. Step 6: Final answer
    x = 43,206.73

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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.