Home / 89,148.42-123,043.11-51,417.54

Finding the Fourth Proportional to 89,148.42, 123,043.11 and 51,417.54

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Solution

The fourth proportional to 89,148.42, 123,043.11 and 51,417.54 is: 70,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,148.42 : 123,043.11 = 51,417.54 : x
  2. Step 2: Convert to fraction form
    89,148.42/123,043.11 = 51,417.54/x
  3. Step 3: Cross multiply
    89,148.42x = 123,043.11 × 51,417.54
  4. Step 4: Simplify right side
    89,148.42x = 6,326,574,030.15
  5. Step 5: Solve for x
    x = 6,326,574,030.15/89,148.42
  6. Step 6: Final answer
    x = 70,966.75

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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.