Home / 64,603.02-89,136.27-39,443.34

Finding the Fourth Proportional to 64,603.02, 89,136.27 and 39,443.34

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Solution

The fourth proportional to 64,603.02, 89,136.27 and 39,443.34 is: 54,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,603.02 : 89,136.27 = 39,443.34 : x
  2. Step 2: Convert to fraction form
    64,603.02/89,136.27 = 39,443.34/x
  3. Step 3: Cross multiply
    64,603.02x = 89,136.27 × 39,443.34
  4. Step 4: Simplify right side
    64,603.02x = 3,515,832,203.94
  5. Step 5: Solve for x
    x = 3,515,832,203.94/64,603.02
  6. Step 6: Final answer
    x = 54,422.10

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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.