Home / 86,445.28-129,415.73-53,064.14

Finding the Fourth Proportional to 86,445.28, 129,415.73 and 53,064.14

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Solution

The fourth proportional to 86,445.28, 129,415.73 and 53,064.14 is: 79,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,445.28 : 129,415.73 = 53,064.14 : x
  2. Step 2: Convert to fraction form
    86,445.28/129,415.73 = 53,064.14/x
  3. Step 3: Cross multiply
    86,445.28x = 129,415.73 × 53,064.14
  4. Step 4: Simplify right side
    86,445.28x = 6,867,333,866.50
  5. Step 5: Solve for x
    x = 6,867,333,866.50/86,445.28
  6. Step 6: Final answer
    x = 79,441.40

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1.5x scale

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.