Home / 76,260.16-105,236.32-42,271.80

Finding the Fourth Proportional to 76,260.16, 105,236.32 and 42,271.80

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Solution

The fourth proportional to 76,260.16, 105,236.32 and 42,271.80 is: 58,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,260.16 : 105,236.32 = 42,271.80 : x
  2. Step 2: Convert to fraction form
    76,260.16/105,236.32 = 42,271.80/x
  3. Step 3: Cross multiply
    76,260.16x = 105,236.32 × 42,271.80
  4. Step 4: Simplify right side
    76,260.16x = 4,448,528,671.78
  5. Step 5: Solve for x
    x = 4,448,528,671.78/76,260.16
  6. Step 6: Final answer
    x = 58,333.59

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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.