Home / 74,343.63-102,595.75-42,078.25

Finding the Fourth Proportional to 74,343.63, 102,595.75 and 42,078.25

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Solution

The fourth proportional to 74,343.63, 102,595.75 and 42,078.25 is: 58,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.63 : 102,595.75 = 42,078.25 : x
  2. Step 2: Convert to fraction form
    74,343.63/102,595.75 = 42,078.25/x
  3. Step 3: Cross multiply
    74,343.63x = 102,595.75 × 42,078.25
  4. Step 4: Simplify right side
    74,343.63x = 4,317,049,640.49
  5. Step 5: Solve for x
    x = 4,317,049,640.49/74,343.63
  6. Step 6: Final answer
    x = 58,068.85

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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.