Home / 64,384.44-88,655.10-57,109.80

Finding the Fourth Proportional to 64,384.44, 88,655.10 and 57,109.80

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Solution

The fourth proportional to 64,384.44, 88,655.10 and 57,109.80 is: 78,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,384.44 : 88,655.10 = 57,109.80 : x
  2. Step 2: Convert to fraction form
    64,384.44/88,655.10 = 57,109.80/x
  3. Step 3: Cross multiply
    64,384.44x = 88,655.10 × 57,109.80
  4. Step 4: Simplify right side
    64,384.44x = 5,063,075,029.98
  5. Step 5: Solve for x
    x = 5,063,075,029.98/64,384.44
  6. Step 6: Final answer
    x = 78,638.18

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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.