Home / 81,209.02-112,070.01-45,401.62

Finding the Fourth Proportional to 81,209.02, 112,070.01 and 45,401.62

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Solution

The fourth proportional to 81,209.02, 112,070.01 and 45,401.62 is: 62,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,209.02 : 112,070.01 = 45,401.62 : x
  2. Step 2: Convert to fraction form
    81,209.02/112,070.01 = 45,401.62/x
  3. Step 3: Cross multiply
    81,209.02x = 112,070.01 × 45,401.62
  4. Step 4: Simplify right side
    81,209.02x = 5,088,160,007.42
  5. Step 5: Solve for x
    x = 5,088,160,007.42/81,209.02
  6. Step 6: Final answer
    x = 62,655.11

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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.