Home / 66,387.18-99,528.93-45,274.89

Finding the Fourth Proportional to 66,387.18, 99,528.93 and 45,274.89

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Solution

The fourth proportional to 66,387.18, 99,528.93 and 45,274.89 is: 67,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,387.18 : 99,528.93 = 45,274.89 : x
  2. Step 2: Convert to fraction form
    66,387.18/99,528.93 = 45,274.89/x
  3. Step 3: Cross multiply
    66,387.18x = 99,528.93 × 45,274.89
  4. Step 4: Simplify right side
    66,387.18x = 4,506,161,357.57
  5. Step 5: Solve for x
    x = 4,506,161,357.57/66,387.18
  6. Step 6: Final answer
    x = 67,876.98

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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.