Home / 84,746.60-127,119.90-51,531.80

Finding the Fourth Proportional to 84,746.60, 127,119.90 and 51,531.80

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Solution

The fourth proportional to 84,746.60, 127,119.90 and 51,531.80 is: 77,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,746.60 : 127,119.90 = 51,531.80 : x
  2. Step 2: Convert to fraction form
    84,746.60/127,119.90 = 51,531.80/x
  3. Step 3: Cross multiply
    84,746.60x = 127,119.90 × 51,531.80
  4. Step 4: Simplify right side
    84,746.60x = 6,550,717,262.82
  5. Step 5: Solve for x
    x = 6,550,717,262.82/84,746.60
  6. Step 6: Final answer
    x = 77,297.70

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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.