Home / 66,378.12-99,490.14-26,886.12

Finding the Fourth Proportional to 66,378.12, 99,490.14 and 26,886.12

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Solution

The fourth proportional to 66,378.12, 99,490.14 and 26,886.12 is: 40,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,378.12 : 99,490.14 = 26,886.12 : x
  2. Step 2: Convert to fraction form
    66,378.12/99,490.14 = 26,886.12/x
  3. Step 3: Cross multiply
    66,378.12x = 99,490.14 × 26,886.12
  4. Step 4: Simplify right side
    66,378.12x = 2,674,903,842.86
  5. Step 5: Solve for x
    x = 2,674,903,842.86/66,378.12
  6. Step 6: Final answer
    x = 40,297.98

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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.