Home / 55,586.10-76,656.99-51,457.80

Finding the Fourth Proportional to 55,586.10, 76,656.99 and 51,457.80

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Solution

The fourth proportional to 55,586.10, 76,656.99 and 51,457.80 is: 70,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,586.10 : 76,656.99 = 51,457.80 : x
  2. Step 2: Convert to fraction form
    55,586.10/76,656.99 = 51,457.80/x
  3. Step 3: Cross multiply
    55,586.10x = 76,656.99 × 51,457.80
  4. Step 4: Simplify right side
    55,586.10x = 3,944,600,060.02
  5. Step 5: Solve for x
    x = 3,944,600,060.02/55,586.10
  6. Step 6: Final answer
    x = 70,963.79

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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.