Home / 79,312.66-109,457.22-45,320.36

Finding the Fourth Proportional to 79,312.66, 109,457.22 and 45,320.36

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Solution

The fourth proportional to 79,312.66, 109,457.22 and 45,320.36 is: 62,545.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,312.66 : 109,457.22 = 45,320.36 : x
  2. Step 2: Convert to fraction form
    79,312.66/109,457.22 = 45,320.36/x
  3. Step 3: Cross multiply
    79,312.66x = 109,457.22 × 45,320.36
  4. Step 4: Simplify right side
    79,312.66x = 4,960,640,615.00
  5. Step 5: Solve for x
    x = 4,960,640,615.00/79,312.66
  6. Step 6: Final answer
    x = 62,545.38

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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.