Home / 77,014.45-106,210.86-64,136.36

Finding the Fourth Proportional to 77,014.45, 106,210.86 and 64,136.36

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Solution

The fourth proportional to 77,014.45, 106,210.86 and 64,136.36 is: 88,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,014.45 : 106,210.86 = 64,136.36 : x
  2. Step 2: Convert to fraction form
    77,014.45/106,210.86 = 64,136.36/x
  3. Step 3: Cross multiply
    77,014.45x = 106,210.86 × 64,136.36
  4. Step 4: Simplify right side
    77,014.45x = 6,811,977,741.22
  5. Step 5: Solve for x
    x = 6,811,977,741.22/77,014.45
  6. Step 6: Final answer
    x = 88,450.65

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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.