Home / 74,935.48-103,407.88-40,945.12

Finding the Fourth Proportional to 74,935.48, 103,407.88 and 40,945.12

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Solution

The fourth proportional to 74,935.48, 103,407.88 and 40,945.12 is: 56,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,935.48 : 103,407.88 = 40,945.12 : x
  2. Step 2: Convert to fraction form
    74,935.48/103,407.88 = 40,945.12/x
  3. Step 3: Cross multiply
    74,935.48x = 103,407.88 × 40,945.12
  4. Step 4: Simplify right side
    74,935.48x = 4,234,048,055.55
  5. Step 5: Solve for x
    x = 4,234,048,055.55/74,935.48
  6. Step 6: Final answer
    x = 56,502.58

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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.