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Finding the Fourth Proportional to 75,220.93, 112,816.77 and 28,477.45

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Solution

The fourth proportional to 75,220.93, 112,816.77 and 28,477.45 is: 42,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,220.93 : 112,816.77 = 28,477.45 : x
  2. Step 2: Convert to fraction form
    75,220.93/112,816.77 = 28,477.45/x
  3. Step 3: Cross multiply
    75,220.93x = 112,816.77 × 28,477.45
  4. Step 4: Simplify right side
    75,220.93x = 3,212,733,926.84
  5. Step 5: Solve for x
    x = 3,212,733,926.84/75,220.93
  6. Step 6: Final answer
    x = 42,710.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.