Home / 85,621.28-118,154.95-47,382.42

Finding the Fourth Proportional to 85,621.28, 118,154.95 and 47,382.42

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Solution

The fourth proportional to 85,621.28, 118,154.95 and 47,382.42 is: 65,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.28 : 118,154.95 = 47,382.42 : x
  2. Step 2: Convert to fraction form
    85,621.28/118,154.95 = 47,382.42/x
  3. Step 3: Cross multiply
    85,621.28x = 118,154.95 × 47,382.42
  4. Step 4: Simplify right side
    85,621.28x = 5,598,467,392.51
  5. Step 5: Solve for x
    x = 5,598,467,392.51/85,621.28
  6. Step 6: Final answer
    x = 65,386.40

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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.