Home / 74,865.64-112,265.58-28,085.74

Finding the Fourth Proportional to 74,865.64, 112,265.58 and 28,085.74

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Solution

The fourth proportional to 74,865.64, 112,265.58 and 28,085.74 is: 42,116.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,865.64 : 112,265.58 = 28,085.74 : x
  2. Step 2: Convert to fraction form
    74,865.64/112,265.58 = 28,085.74/x
  3. Step 3: Cross multiply
    74,865.64x = 112,265.58 × 28,085.74
  4. Step 4: Simplify right side
    74,865.64x = 3,153,061,890.83
  5. Step 5: Solve for x
    x = 3,153,061,890.83/74,865.64
  6. Step 6: Final answer
    x = 42,116.28

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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.