Home / 57,151.07-78,795.37-39,214.94

Finding the Fourth Proportional to 57,151.07, 78,795.37 and 39,214.94

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Solution

The fourth proportional to 57,151.07, 78,795.37 and 39,214.94 is: 54,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.07 : 78,795.37 = 39,214.94 : x
  2. Step 2: Convert to fraction form
    57,151.07/78,795.37 = 39,214.94/x
  3. Step 3: Cross multiply
    57,151.07x = 78,795.37 × 39,214.94
  4. Step 4: Simplify right side
    57,151.07x = 3,089,955,214.81
  5. Step 5: Solve for x
    x = 3,089,955,214.81/57,151.07
  6. Step 6: Final answer
    x = 54,066.45

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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.