Home / 79,621.26-119,457.81-38,071.50

Finding the Fourth Proportional to 79,621.26, 119,457.81 and 38,071.50

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Solution

The fourth proportional to 79,621.26, 119,457.81 and 38,071.50 is: 57,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.26 : 119,457.81 = 38,071.50 : x
  2. Step 2: Convert to fraction form
    79,621.26/119,457.81 = 38,071.50/x
  3. Step 3: Cross multiply
    79,621.26x = 119,457.81 × 38,071.50
  4. Step 4: Simplify right side
    79,621.26x = 4,547,938,013.42
  5. Step 5: Solve for x
    x = 4,547,938,013.42/79,621.26
  6. Step 6: Final answer
    x = 57,119.64

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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.