Home / 85,389.63-127,996.95-35,498.70

Finding the Fourth Proportional to 85,389.63, 127,996.95 and 35,498.70

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Solution

The fourth proportional to 85,389.63, 127,996.95 and 35,498.70 is: 53,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,389.63 : 127,996.95 = 35,498.70 : x
  2. Step 2: Convert to fraction form
    85,389.63/127,996.95 = 35,498.70/x
  3. Step 3: Cross multiply
    85,389.63x = 127,996.95 × 35,498.70
  4. Step 4: Simplify right side
    85,389.63x = 4,543,725,328.97
  5. Step 5: Solve for x
    x = 4,543,725,328.97/85,389.63
  6. Step 6: Final answer
    x = 53,211.68

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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.