Home / 66,461.12-91,664.48-42,590.01

Finding the Fourth Proportional to 66,461.12, 91,664.48 and 42,590.01

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Solution

The fourth proportional to 66,461.12, 91,664.48 and 42,590.01 is: 58,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.12 : 91,664.48 = 42,590.01 : x
  2. Step 2: Convert to fraction form
    66,461.12/91,664.48 = 42,590.01/x
  3. Step 3: Cross multiply
    66,461.12x = 91,664.48 × 42,590.01
  4. Step 4: Simplify right side
    66,461.12x = 3,903,991,226.32
  5. Step 5: Solve for x
    x = 3,903,991,226.32/66,461.12
  6. Step 6: Final answer
    x = 58,740.98

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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.