Home / 82,688.22-124,031.88-30,097.71

Finding the Fourth Proportional to 82,688.22, 124,031.88 and 30,097.71

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Solution

The fourth proportional to 82,688.22, 124,031.88 and 30,097.71 is: 45,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,688.22 : 124,031.88 = 30,097.71 : x
  2. Step 2: Convert to fraction form
    82,688.22/124,031.88 = 30,097.71/x
  3. Step 3: Cross multiply
    82,688.22x = 124,031.88 × 30,097.71
  4. Step 4: Simplify right side
    82,688.22x = 3,733,075,554.99
  5. Step 5: Solve for x
    x = 3,733,075,554.99/82,688.22
  6. Step 6: Final answer
    x = 45,146.40

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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.