Home / 65,135.02-89,886.33-36,840.10

Finding the Fourth Proportional to 65,135.02, 89,886.33 and 36,840.10

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Solution

The fourth proportional to 65,135.02, 89,886.33 and 36,840.10 is: 50,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,135.02 : 89,886.33 = 36,840.10 : x
  2. Step 2: Convert to fraction form
    65,135.02/89,886.33 = 36,840.10/x
  3. Step 3: Cross multiply
    65,135.02x = 89,886.33 × 36,840.10
  4. Step 4: Simplify right side
    65,135.02x = 3,311,421,385.83
  5. Step 5: Solve for x
    x = 3,311,421,385.83/65,135.02
  6. Step 6: Final answer
    x = 50,839.34

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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.