Home / 77,307.10-106,682.25-43,315.18

Finding the Fourth Proportional to 77,307.10, 106,682.25 and 43,315.18

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Solution

The fourth proportional to 77,307.10, 106,682.25 and 43,315.18 is: 59,774.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,307.10 : 106,682.25 = 43,315.18 : x
  2. Step 2: Convert to fraction form
    77,307.10/106,682.25 = 43,315.18/x
  3. Step 3: Cross multiply
    77,307.10x = 106,682.25 × 43,315.18
  4. Step 4: Simplify right side
    77,307.10x = 4,620,960,861.56
  5. Step 5: Solve for x
    x = 4,620,960,861.56/77,307.10
  6. Step 6: Final answer
    x = 59,774.08

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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.