Home / 85,621.68-118,157.76-52,087.68

Finding the Fourth Proportional to 85,621.68, 118,157.76 and 52,087.68

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Solution

The fourth proportional to 85,621.68, 118,157.76 and 52,087.68 is: 71,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.68 : 118,157.76 = 52,087.68 : x
  2. Step 2: Convert to fraction form
    85,621.68/118,157.76 = 52,087.68/x
  3. Step 3: Cross multiply
    85,621.68x = 118,157.76 × 52,087.68
  4. Step 4: Simplify right side
    85,621.68x = 6,154,563,592.40
  5. Step 5: Solve for x
    x = 6,154,563,592.40/85,621.68
  6. Step 6: Final answer
    x = 71,880.90

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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.