Home / 56,840.27-78,440.07-31,347.55

Finding the Fourth Proportional to 56,840.27, 78,440.07 and 31,347.55

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Solution

The fourth proportional to 56,840.27, 78,440.07 and 31,347.55 is: 43,259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,840.27 : 78,440.07 = 31,347.55 : x
  2. Step 2: Convert to fraction form
    56,840.27/78,440.07 = 31,347.55/x
  3. Step 3: Cross multiply
    56,840.27x = 78,440.07 × 31,347.55
  4. Step 4: Simplify right side
    56,840.27x = 2,458,903,820.23
  5. Step 5: Solve for x
    x = 2,458,903,820.23/56,840.27
  6. Step 6: Final answer
    x = 43,259.89

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1.5x scale

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.