Home / 66,478.32-99,642.10-26,985.96

Finding the Fourth Proportional to 66,478.32, 99,642.10 and 26,985.96

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Solution

The fourth proportional to 66,478.32, 99,642.10 and 26,985.96 is: 40,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.32 : 99,642.10 = 26,985.96 : x
  2. Step 2: Convert to fraction form
    66,478.32/99,642.10 = 26,985.96/x
  3. Step 3: Cross multiply
    66,478.32x = 99,642.10 × 26,985.96
  4. Step 4: Simplify right side
    66,478.32x = 2,688,937,724.92
  5. Step 5: Solve for x
    x = 2,688,937,724.92/66,478.32
  6. Step 6: Final answer
    x = 40,448.34

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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.