Home / 65,186.10-89,962.65-38,315.16

Finding the Fourth Proportional to 65,186.10, 89,962.65 and 38,315.16

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Solution

The fourth proportional to 65,186.10, 89,962.65 and 38,315.16 is: 52,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,186.10 : 89,962.65 = 38,315.16 : x
  2. Step 2: Convert to fraction form
    65,186.10/89,962.65 = 38,315.16/x
  3. Step 3: Cross multiply
    65,186.10x = 89,962.65 × 38,315.16
  4. Step 4: Simplify right side
    65,186.10x = 3,446,933,328.77
  5. Step 5: Solve for x
    x = 3,446,933,328.77/65,186.10
  6. Step 6: Final answer
    x = 52,878.35

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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.