Home / 74,349.30-102,602.09-40,357.76

Finding the Fourth Proportional to 74,349.30, 102,602.09 and 40,357.76

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Solution

The fourth proportional to 74,349.30, 102,602.09 and 40,357.76 is: 55,693.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,349.30 : 102,602.09 = 40,357.76 : x
  2. Step 2: Convert to fraction form
    74,349.30/102,602.09 = 40,357.76/x
  3. Step 3: Cross multiply
    74,349.30x = 102,602.09 × 40,357.76
  4. Step 4: Simplify right side
    74,349.30x = 4,140,790,881.12
  5. Step 5: Solve for x
    x = 4,140,790,881.12/74,349.30
  6. Step 6: Final answer
    x = 55,693.74

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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.