Home / 85,205.10-127,666.38-51,824.18

Finding the Fourth Proportional to 85,205.10, 127,666.38 and 51,824.18

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Solution

The fourth proportional to 85,205.10, 127,666.38 and 51,824.18 is: 77,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,205.10 : 127,666.38 = 51,824.18 : x
  2. Step 2: Convert to fraction form
    85,205.10/127,666.38 = 51,824.18/x
  3. Step 3: Cross multiply
    85,205.10x = 127,666.38 × 51,824.18
  4. Step 4: Simplify right side
    85,205.10x = 6,616,205,457.07
  5. Step 5: Solve for x
    x = 6,616,205,457.07/85,205.10
  6. Step 6: Final answer
    x = 77,650.35

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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.