Home / 85,988.45-118,667.46-49,688.69

Finding the Fourth Proportional to 85,988.45, 118,667.46 and 49,688.69

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Solution

The fourth proportional to 85,988.45, 118,667.46 and 49,688.69 is: 68,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,988.45 : 118,667.46 = 49,688.69 : x
  2. Step 2: Convert to fraction form
    85,988.45/118,667.46 = 49,688.69/x
  3. Step 3: Cross multiply
    85,988.45x = 118,667.46 × 49,688.69
  4. Step 4: Simplify right side
    85,988.45x = 5,896,430,226.02
  5. Step 5: Solve for x
    x = 5,896,430,226.02/85,988.45
  6. Step 6: Final answer
    x = 68,572.36

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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.