Home / 85,621.95-118,159.38-53,369.60

Finding the Fourth Proportional to 85,621.95, 118,159.38 and 53,369.60

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Solution

The fourth proportional to 85,621.95, 118,159.38 and 53,369.60 is: 73,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.95 : 118,159.38 = 53,369.60 : x
  2. Step 2: Convert to fraction form
    85,621.95/118,159.38 = 53,369.60/x
  3. Step 3: Cross multiply
    85,621.95x = 118,159.38 × 53,369.60
  4. Step 4: Simplify right side
    85,621.95x = 6,306,118,256.05
  5. Step 5: Solve for x
    x = 6,306,118,256.05/85,621.95
  6. Step 6: Final answer
    x = 73,650.72

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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.