Home / 66,441.20-99,661.80-61,372.40

Finding the Fourth Proportional to 66,441.20, 99,661.80 and 61,372.40

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Solution

The fourth proportional to 66,441.20, 99,661.80 and 61,372.40 is: 92,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.20 : 99,661.80 = 61,372.40 : x
  2. Step 2: Convert to fraction form
    66,441.20/99,661.80 = 61,372.40/x
  3. Step 3: Cross multiply
    66,441.20x = 99,661.80 × 61,372.40
  4. Step 4: Simplify right side
    66,441.20x = 6,116,483,854.32
  5. Step 5: Solve for x
    x = 6,116,483,854.32/66,441.20
  6. Step 6: Final answer
    x = 92,058.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.