Home / 85,719.72-118,274.10-51,733.74

Finding the Fourth Proportional to 85,719.72, 118,274.10 and 51,733.74

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Solution

The fourth proportional to 85,719.72, 118,274.10 and 51,733.74 is: 71,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,719.72 : 118,274.10 = 51,733.74 : x
  2. Step 2: Convert to fraction form
    85,719.72/118,274.10 = 51,733.74/x
  3. Step 3: Cross multiply
    85,719.72x = 118,274.10 × 51,733.74
  4. Step 4: Simplify right side
    85,719.72x = 6,118,761,538.13
  5. Step 5: Solve for x
    x = 6,118,761,538.13/85,719.72
  6. Step 6: Final answer
    x = 71,381.03

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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.