Home / 74,328.38-102,573.23-40,336.87

Finding the Fourth Proportional to 74,328.38, 102,573.23 and 40,336.87

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Solution

The fourth proportional to 74,328.38, 102,573.23 and 40,336.87 is: 55,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.38 : 102,573.23 = 40,336.87 : x
  2. Step 2: Convert to fraction form
    74,328.38/102,573.23 = 40,336.87/x
  3. Step 3: Cross multiply
    74,328.38x = 102,573.23 × 40,336.87
  4. Step 4: Simplify right side
    74,328.38x = 4,137,482,888.40
  5. Step 5: Solve for x
    x = 4,137,482,888.40/74,328.38
  6. Step 6: Final answer
    x = 55,664.91

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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.