Home / 66,355.20-99,051.65-61,416.17

Finding the Fourth Proportional to 66,355.20, 99,051.65 and 61,416.17

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Solution

The fourth proportional to 66,355.20, 99,051.65 and 61,416.17 is: 91,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.20 : 99,051.65 = 61,416.17 : x
  2. Step 2: Convert to fraction form
    66,355.20/99,051.65 = 61,416.17/x
  3. Step 3: Cross multiply
    66,355.20x = 99,051.65 × 61,416.17
  4. Step 4: Simplify right side
    66,355.20x = 6,083,372,172.84
  5. Step 5: Solve for x
    x = 6,083,372,172.84/66,355.20
  6. Step 6: Final answer
    x = 91,678.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.