Home / 74,931.37-103,404.08-40,939.13

Finding the Fourth Proportional to 74,931.37, 103,404.08 and 40,939.13

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Solution

The fourth proportional to 74,931.37, 103,404.08 and 40,939.13 is: 56,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,931.37 : 103,404.08 = 40,939.13 : x
  2. Step 2: Convert to fraction form
    74,931.37/103,404.08 = 40,939.13/x
  3. Step 3: Cross multiply
    74,931.37x = 103,404.08 × 40,939.13
  4. Step 4: Simplify right side
    74,931.37x = 4,233,272,816.04
  5. Step 5: Solve for x
    x = 4,233,272,816.04/74,931.37
  6. Step 6: Final answer
    x = 56,495.34

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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.