Home / 57,152.34-85,697.23-45,381.72

Finding the Fourth Proportional to 57,152.34, 85,697.23 and 45,381.72

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Solution

The fourth proportional to 57,152.34, 85,697.23 and 45,381.72 is: 68,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,152.34 : 85,697.23 = 45,381.72 : x
  2. Step 2: Convert to fraction form
    57,152.34/85,697.23 = 45,381.72/x
  3. Step 3: Cross multiply
    57,152.34x = 85,697.23 × 45,381.72
  4. Step 4: Simplify right side
    57,152.34x = 3,889,087,696.64
  5. Step 5: Solve for x
    x = 3,889,087,696.64/57,152.34
  6. Step 6: Final answer
    x = 68,047.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.