Home / 81,423.06-112,366.04-45,612.30

Finding the Fourth Proportional to 81,423.06, 112,366.04 and 45,612.30

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Solution

The fourth proportional to 81,423.06, 112,366.04 and 45,612.30 is: 62,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.06 : 112,366.04 = 45,612.30 : x
  2. Step 2: Convert to fraction form
    81,423.06/112,366.04 = 45,612.30/x
  3. Step 3: Cross multiply
    81,423.06x = 112,366.04 × 45,612.30
  4. Step 4: Simplify right side
    81,423.06x = 5,125,273,298.23
  5. Step 5: Solve for x
    x = 5,125,273,298.23/81,423.06
  6. Step 6: Final answer
    x = 62,946.21

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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.