Home / 78,773.04-108,707.70-42,962.94

Finding the Fourth Proportional to 78,773.04, 108,707.70 and 42,962.94

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Solution

The fourth proportional to 78,773.04, 108,707.70 and 42,962.94 is: 59,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,773.04 : 108,707.70 = 42,962.94 : x
  2. Step 2: Convert to fraction form
    78,773.04/108,707.70 = 42,962.94/x
  3. Step 3: Cross multiply
    78,773.04x = 108,707.70 × 42,962.94
  4. Step 4: Simplify right side
    78,773.04x = 4,670,402,392.64
  5. Step 5: Solve for x
    x = 4,670,402,392.64/78,773.04
  6. Step 6: Final answer
    x = 59,289.35

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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.