Home / 66,075.64-99,153.78-28,628.44

Finding the Fourth Proportional to 66,075.64, 99,153.78 and 28,628.44

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Solution

The fourth proportional to 66,075.64, 99,153.78 and 28,628.44 is: 42,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.64 : 99,153.78 = 28,628.44 : x
  2. Step 2: Convert to fraction form
    66,075.64/99,153.78 = 28,628.44/x
  3. Step 3: Cross multiply
    66,075.64x = 99,153.78 × 28,628.44
  4. Step 4: Simplify right side
    66,075.64x = 2,838,618,041.50
  5. Step 5: Solve for x
    x = 2,838,618,041.50/66,075.64
  6. Step 6: Final answer
    x = 42,960.13

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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.