Home / 74,307.60-102,542.22-53,122.32

Finding the Fourth Proportional to 74,307.60, 102,542.22 and 53,122.32

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Solution

The fourth proportional to 74,307.60, 102,542.22 and 53,122.32 is: 73,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,307.60 : 102,542.22 = 53,122.32 : x
  2. Step 2: Convert to fraction form
    74,307.60/102,542.22 = 53,122.32/x
  3. Step 3: Cross multiply
    74,307.60x = 102,542.22 × 53,122.32
  4. Step 4: Simplify right side
    74,307.60x = 5,447,280,624.35
  5. Step 5: Solve for x
    x = 5,447,280,624.35/74,307.60
  6. Step 6: Final answer
    x = 73,307.18

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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.