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Finding the Fourth Proportional to 74,881.63, 103,333.93 and 40,889.51

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Solution

The fourth proportional to 74,881.63, 103,333.93 and 40,889.51 is: 56,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,881.63 : 103,333.93 = 40,889.51 : x
  2. Step 2: Convert to fraction form
    74,881.63/103,333.93 = 40,889.51/x
  3. Step 3: Cross multiply
    74,881.63x = 103,333.93 × 40,889.51
  4. Step 4: Simplify right side
    74,881.63x = 4,225,273,145.18
  5. Step 5: Solve for x
    x = 4,225,273,145.18/74,881.63
  6. Step 6: Final answer
    x = 56,426.03

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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.