Home / 72,915.19-100,582.16-42,694.70

Finding the Fourth Proportional to 72,915.19, 100,582.16 and 42,694.70

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Solution

The fourth proportional to 72,915.19, 100,582.16 and 42,694.70 is: 58,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,915.19 : 100,582.16 = 42,694.70 : x
  2. Step 2: Convert to fraction form
    72,915.19/100,582.16 = 42,694.70/x
  3. Step 3: Cross multiply
    72,915.19x = 100,582.16 × 42,694.70
  4. Step 4: Simplify right side
    72,915.19x = 4,294,324,430.17
  5. Step 5: Solve for x
    x = 4,294,324,430.17/72,915.19
  6. Step 6: Final answer
    x = 58,894.79

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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.