Home / 82,925.10-124,420.05-30,338.70

Finding the Fourth Proportional to 82,925.10, 124,420.05 and 30,338.70

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Solution

The fourth proportional to 82,925.10, 124,420.05 and 30,338.70 is: 45,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,925.10 : 124,420.05 = 30,338.70 : x
  2. Step 2: Convert to fraction form
    82,925.10/124,420.05 = 30,338.70/x
  3. Step 3: Cross multiply
    82,925.10x = 124,420.05 × 30,338.70
  4. Step 4: Simplify right side
    82,925.10x = 3,774,742,570.94
  5. Step 5: Solve for x
    x = 3,774,742,570.94/82,925.10
  6. Step 6: Final answer
    x = 45,519.90

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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.