Home / 84,746.85-127,114.09-39,778.46

Finding the Fourth Proportional to 84,746.85, 127,114.09 and 39,778.46

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Solution

The fourth proportional to 84,746.85, 127,114.09 and 39,778.46 is: 59,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,746.85 : 127,114.09 = 39,778.46 : x
  2. Step 2: Convert to fraction form
    84,746.85/127,114.09 = 39,778.46/x
  3. Step 3: Cross multiply
    84,746.85x = 127,114.09 × 39,778.46
  4. Step 4: Simplify right side
    84,746.85x = 5,056,402,744.50
  5. Step 5: Solve for x
    x = 5,056,402,744.50/84,746.85
  6. Step 6: Final answer
    x = 59,664.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.