Home / 66,421.17-99,562.56-28,971.19

Finding the Fourth Proportional to 66,421.17, 99,562.56 and 28,971.19

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Solution

The fourth proportional to 66,421.17, 99,562.56 and 28,971.19 is: 43,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.17 : 99,562.56 = 28,971.19 : x
  2. Step 2: Convert to fraction form
    66,421.17/99,562.56 = 28,971.19/x
  3. Step 3: Cross multiply
    66,421.17x = 99,562.56 × 28,971.19
  4. Step 4: Simplify right side
    66,421.17x = 2,884,445,842.65
  5. Step 5: Solve for x
    x = 2,884,445,842.65/66,421.17
  6. Step 6: Final answer
    x = 43,426.60

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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.