Home / 52,442.34-72,368.10-30,640.64

Finding the Fourth Proportional to 52,442.34, 72,368.10 and 30,640.64

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Solution

The fourth proportional to 52,442.34, 72,368.10 and 30,640.64 is: 42,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,442.34 : 72,368.10 = 30,640.64 : x
  2. Step 2: Convert to fraction form
    52,442.34/72,368.10 = 30,640.64/x
  3. Step 3: Cross multiply
    52,442.34x = 72,368.10 × 30,640.64
  4. Step 4: Simplify right side
    52,442.34x = 2,217,404,899.58
  5. Step 5: Solve for x
    x = 2,217,404,899.58/52,442.34
  6. Step 6: Final answer
    x = 42,282.72

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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.