Home / 85,666.68-118,191.42-55,490.40

Finding the Fourth Proportional to 85,666.68, 118,191.42 and 55,490.40

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Solution

The fourth proportional to 85,666.68, 118,191.42 and 55,490.40 is: 76,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.68 : 118,191.42 = 55,490.40 : x
  2. Step 2: Convert to fraction form
    85,666.68/118,191.42 = 55,490.40/x
  3. Step 3: Cross multiply
    85,666.68x = 118,191.42 × 55,490.40
  4. Step 4: Simplify right side
    85,666.68x = 6,558,489,172.37
  5. Step 5: Solve for x
    x = 6,558,489,172.37/85,666.68
  6. Step 6: Final answer
    x = 76,558.23

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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.