Home / 85,012.71-117,315.64-49,202.00

Finding the Fourth Proportional to 85,012.71, 117,315.64 and 49,202.00

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Solution

The fourth proportional to 85,012.71, 117,315.64 and 49,202.00 is: 67,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.71 : 117,315.64 = 49,202.00 : x
  2. Step 2: Convert to fraction form
    85,012.71/117,315.64 = 49,202.00/x
  3. Step 3: Cross multiply
    85,012.71x = 117,315.64 × 49,202.00
  4. Step 4: Simplify right side
    85,012.71x = 5,772,163,702.99
  5. Step 5: Solve for x
    x = 5,772,163,702.99/85,012.71
  6. Step 6: Final answer
    x = 67,897.66

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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.