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Finding the Fourth Proportional to 73,854.56, 101,918.76 and 40,320.56

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Solution

The fourth proportional to 73,854.56, 101,918.76 and 40,320.56 is: 55,642.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,854.56 : 101,918.76 = 40,320.56 : x
  2. Step 2: Convert to fraction form
    73,854.56/101,918.76 = 40,320.56/x
  3. Step 3: Cross multiply
    73,854.56x = 101,918.76 × 40,320.56
  4. Step 4: Simplify right side
    73,854.56x = 4,109,421,477.71
  5. Step 5: Solve for x
    x = 4,109,421,477.71/73,854.56
  6. Step 6: Final answer
    x = 55,642.08

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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.