Home / 85,681.08-118,228.68-49,877.46

Finding the Fourth Proportional to 85,681.08, 118,228.68 and 49,877.46

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Solution

The fourth proportional to 85,681.08, 118,228.68 and 49,877.46 is: 68,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,681.08 : 118,228.68 = 49,877.46 : x
  2. Step 2: Convert to fraction form
    85,681.08/118,228.68 = 49,877.46/x
  3. Step 3: Cross multiply
    85,681.08x = 118,228.68 × 49,877.46
  4. Step 4: Simplify right side
    85,681.08x = 5,896,946,257.55
  5. Step 5: Solve for x
    x = 5,896,946,257.55/85,681.08
  6. Step 6: Final answer
    x = 68,824.37

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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.