Home / 66,438.24-99,681.68-30,916.52

Finding the Fourth Proportional to 66,438.24, 99,681.68 and 30,916.52

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Solution

The fourth proportional to 66,438.24, 99,681.68 and 30,916.52 is: 46,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438.24 : 99,681.68 = 30,916.52 : x
  2. Step 2: Convert to fraction form
    66,438.24/99,681.68 = 30,916.52/x
  3. Step 3: Cross multiply
    66,438.24x = 99,681.68 × 30,916.52
  4. Step 4: Simplify right side
    66,438.24x = 3,081,810,653.35
  5. Step 5: Solve for x
    x = 3,081,810,653.35/66,438.24
  6. Step 6: Final answer
    x = 46,386.10

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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.