Home / 61,916.40-85,458.24-40,697.64

Finding the Fourth Proportional to 61,916.40, 85,458.24 and 40,697.64

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Solution

The fourth proportional to 61,916.40, 85,458.24 and 40,697.64 is: 56,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,916.40 : 85,458.24 = 40,697.64 : x
  2. Step 2: Convert to fraction form
    61,916.40/85,458.24 = 40,697.64/x
  3. Step 3: Cross multiply
    61,916.40x = 85,458.24 × 40,697.64
  4. Step 4: Simplify right side
    61,916.40x = 3,477,948,686.55
  5. Step 5: Solve for x
    x = 3,477,948,686.55/61,916.40
  6. Step 6: Final answer
    x = 56,171.69

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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.