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Finding the Fourth Proportional to 75,006.40, 112,509.60 and 19,602.40

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Solution

The fourth proportional to 75,006.40, 112,509.60 and 19,602.40 is: 29,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,006.40 : 112,509.60 = 19,602.40 : x
  2. Step 2: Convert to fraction form
    75,006.40/112,509.60 = 19,602.40/x
  3. Step 3: Cross multiply
    75,006.40x = 112,509.60 × 19,602.40
  4. Step 4: Simplify right side
    75,006.40x = 2,205,458,183.04
  5. Step 5: Solve for x
    x = 2,205,458,183.04/75,006.40
  6. Step 6: Final answer
    x = 29,403.60

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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.