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Finding the Fourth Proportional to 73,880.16, 101,953.20 and 40,346.40

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Solution

The fourth proportional to 73,880.16, 101,953.20 and 40,346.40 is: 55,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,880.16 : 101,953.20 = 40,346.40 : x
  2. Step 2: Convert to fraction form
    73,880.16/101,953.20 = 40,346.40/x
  3. Step 3: Cross multiply
    73,880.16x = 101,953.20 × 40,346.40
  4. Step 4: Simplify right side
    73,880.16x = 4,113,444,588.48
  5. Step 5: Solve for x
    x = 4,113,444,588.48/73,880.16
  6. Step 6: Final answer
    x = 55,677.26

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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.