Home / 66,272.52-99,277.58-42,915.40

Finding the Fourth Proportional to 66,272.52, 99,277.58 and 42,915.40

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Solution

The fourth proportional to 66,272.52, 99,277.58 and 42,915.40 is: 64,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,272.52 : 99,277.58 = 42,915.40 : x
  2. Step 2: Convert to fraction form
    66,272.52/99,277.58 = 42,915.40/x
  3. Step 3: Cross multiply
    66,272.52x = 99,277.58 × 42,915.40
  4. Step 4: Simplify right side
    66,272.52x = 4,260,537,056.73
  5. Step 5: Solve for x
    x = 4,260,537,056.73/66,272.52
  6. Step 6: Final answer
    x = 64,288.14

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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.