Home / 79,101.04-109,210.40-70,588.54

Finding the Fourth Proportional to 79,101.04, 109,210.40 and 70,588.54

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Solution

The fourth proportional to 79,101.04, 109,210.40 and 70,588.54 is: 97,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,101.04 : 109,210.40 = 70,588.54 : x
  2. Step 2: Convert to fraction form
    79,101.04/109,210.40 = 70,588.54/x
  3. Step 3: Cross multiply
    79,101.04x = 109,210.40 × 70,588.54
  4. Step 4: Simplify right side
    79,101.04x = 7,709,002,688.82
  5. Step 5: Solve for x
    x = 7,709,002,688.82/79,101.04
  6. Step 6: Final answer
    x = 97,457.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.