Home / 56,739.69-78,261.66-51,683.67

Finding the Fourth Proportional to 56,739.69, 78,261.66 and 51,683.67

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Solution

The fourth proportional to 56,739.69, 78,261.66 and 51,683.67 is: 71,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,739.69 : 78,261.66 = 51,683.67 : x
  2. Step 2: Convert to fraction form
    56,739.69/78,261.66 = 51,683.67/x
  3. Step 3: Cross multiply
    56,739.69x = 78,261.66 × 51,683.67
  4. Step 4: Simplify right side
    56,739.69x = 4,044,849,809.09
  5. Step 5: Solve for x
    x = 4,044,849,809.09/56,739.69
  6. Step 6: Final answer
    x = 71,287.84

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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.