Home / 80,812.04-111,411.93-56,580.42

Finding the Fourth Proportional to 80,812.04, 111,411.93 and 56,580.42

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Solution

The fourth proportional to 80,812.04, 111,411.93 and 56,580.42 is: 78,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,812.04 : 111,411.93 = 56,580.42 : x
  2. Step 2: Convert to fraction form
    80,812.04/111,411.93 = 56,580.42/x
  3. Step 3: Cross multiply
    80,812.04x = 111,411.93 × 56,580.42
  4. Step 4: Simplify right side
    80,812.04x = 6,303,734,263.25
  5. Step 5: Solve for x
    x = 6,303,734,263.25/80,812.04
  6. Step 6: Final answer
    x = 78,004.89

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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.