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Finding the Fourth Proportional to 56,807, 78,390.40 and 32,602.84

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Solution

The fourth proportional to 56,807, 78,390.40 and 32,602.84 is: 44,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,807 : 78,390.40 = 32,602.84 : x
  2. Step 2: Convert to fraction form
    56,807/78,390.40 = 32,602.84/x
  3. Step 3: Cross multiply
    56,807x = 78,390.40 × 32,602.84
  4. Step 4: Simplify right side
    56,807x = 2,555,749,668.74
  5. Step 5: Solve for x
    x = 2,555,749,668.74/56,807
  6. Step 6: Final answer
    x = 44,990.05

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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.