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Finding the Fourth Proportional to 67,075.92, 100,602.15 and 19,690.24

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Solution

The fourth proportional to 67,075.92, 100,602.15 and 19,690.24 is: 29,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,075.92 : 100,602.15 = 19,690.24 : x
  2. Step 2: Convert to fraction form
    67,075.92/100,602.15 = 19,690.24/x
  3. Step 3: Cross multiply
    67,075.92x = 100,602.15 × 19,690.24
  4. Step 4: Simplify right side
    67,075.92x = 1,980,880,177.29
  5. Step 5: Solve for x
    x = 1,980,880,177.29/67,075.92
  6. Step 6: Final answer
    x = 29,531.91

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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.