Home / 66,071.34-99,068.94-21,685.77

Finding the Fourth Proportional to 66,071.34, 99,068.94 and 21,685.77

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Solution

The fourth proportional to 66,071.34, 99,068.94 and 21,685.77 is: 32,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,071.34 : 99,068.94 = 21,685.77 : x
  2. Step 2: Convert to fraction form
    66,071.34/99,068.94 = 21,685.77/x
  3. Step 3: Cross multiply
    66,071.34x = 99,068.94 × 21,685.77
  4. Step 4: Simplify right side
    66,071.34x = 2,148,386,246.98
  5. Step 5: Solve for x
    x = 2,148,386,246.98/66,071.34
  6. Step 6: Final answer
    x = 32,516.16

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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.