Home / 64,914.40-89,499.66-55,214.08

Finding the Fourth Proportional to 64,914.40, 89,499.66 and 55,214.08

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Solution

The fourth proportional to 64,914.40, 89,499.66 and 55,214.08 is: 76,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,914.40 : 89,499.66 = 55,214.08 : x
  2. Step 2: Convert to fraction form
    64,914.40/89,499.66 = 55,214.08/x
  3. Step 3: Cross multiply
    64,914.40x = 89,499.66 × 55,214.08
  4. Step 4: Simplify right side
    64,914.40x = 4,941,641,387.21
  5. Step 5: Solve for x
    x = 4,941,641,387.21/64,914.40
  6. Step 6: Final answer
    x = 76,125.50

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1.5x scale

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.