Home / 66,718.64-92,084.08-42,875.12

Finding the Fourth Proportional to 66,718.64, 92,084.08 and 42,875.12

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Solution

The fourth proportional to 66,718.64, 92,084.08 and 42,875.12 is: 59,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,718.64 : 92,084.08 = 42,875.12 : x
  2. Step 2: Convert to fraction form
    66,718.64/92,084.08 = 42,875.12/x
  3. Step 3: Cross multiply
    66,718.64x = 92,084.08 × 42,875.12
  4. Step 4: Simplify right side
    66,718.64x = 3,948,115,980.09
  5. Step 5: Solve for x
    x = 3,948,115,980.09/66,718.64
  6. Step 6: Final answer
    x = 59,175.61

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1.5x scale

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.