Home / 66,069.04-99,118.70-28,635.40

Finding the Fourth Proportional to 66,069.04, 99,118.70 and 28,635.40

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Solution

The fourth proportional to 66,069.04, 99,118.70 and 28,635.40 is: 42,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,069.04 : 99,118.70 = 28,635.40 : x
  2. Step 2: Convert to fraction form
    66,069.04/99,118.70 = 28,635.40/x
  3. Step 3: Cross multiply
    66,069.04x = 99,118.70 × 28,635.40
  4. Step 4: Simplify right side
    66,069.04x = 2,838,303,621.98
  5. Step 5: Solve for x
    x = 2,838,303,621.98/66,069.04
  6. Step 6: Final answer
    x = 42,959.66

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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.