Home / 83,621.04-115,395.54-47,322.12

Finding the Fourth Proportional to 83,621.04, 115,395.54 and 47,322.12

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Solution

The fourth proportional to 83,621.04, 115,395.54 and 47,322.12 is: 65,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,621.04 : 115,395.54 = 47,322.12 : x
  2. Step 2: Convert to fraction form
    83,621.04/115,395.54 = 47,322.12/x
  3. Step 3: Cross multiply
    83,621.04x = 115,395.54 × 47,322.12
  4. Step 4: Simplify right side
    83,621.04x = 5,460,761,591.34
  5. Step 5: Solve for x
    x = 5,460,761,591.34/83,621.04
  6. Step 6: Final answer
    x = 65,303.68

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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.