Home / 80,445.28-111,030.66-46,459.30

Finding the Fourth Proportional to 80,445.28, 111,030.66 and 46,459.30

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Solution

The fourth proportional to 80,445.28, 111,030.66 and 46,459.30 is: 64,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.28 : 111,030.66 = 46,459.30 : x
  2. Step 2: Convert to fraction form
    80,445.28/111,030.66 = 46,459.30/x
  3. Step 3: Cross multiply
    80,445.28x = 111,030.66 × 46,459.30
  4. Step 4: Simplify right side
    80,445.28x = 5,158,406,742.14
  5. Step 5: Solve for x
    x = 5,158,406,742.14/80,445.28
  6. Step 6: Final answer
    x = 64,123.17

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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.