Home / 85,730.27-118,312.01-51,738.21

Finding the Fourth Proportional to 85,730.27, 118,312.01 and 51,738.21

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Solution

The fourth proportional to 85,730.27, 118,312.01 and 51,738.21 is: 71,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,730.27 : 118,312.01 = 51,738.21 : x
  2. Step 2: Convert to fraction form
    85,730.27/118,312.01 = 51,738.21/x
  3. Step 3: Cross multiply
    85,730.27x = 118,312.01 × 51,738.21
  4. Step 4: Simplify right side
    85,730.27x = 6,121,251,554.23
  5. Step 5: Solve for x
    x = 6,121,251,554.23/85,730.27
  6. Step 6: Final answer
    x = 71,401.29

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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.