Home / 78,056.53-107,718.20-42,246.93

Finding the Fourth Proportional to 78,056.53, 107,718.20 and 42,246.93

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Solution

The fourth proportional to 78,056.53, 107,718.20 and 42,246.93 is: 58,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,056.53 : 107,718.20 = 42,246.93 : x
  2. Step 2: Convert to fraction form
    78,056.53/107,718.20 = 42,246.93/x
  3. Step 3: Cross multiply
    78,056.53x = 107,718.20 × 42,246.93
  4. Step 4: Simplify right side
    78,056.53x = 4,550,763,255.13
  5. Step 5: Solve for x
    x = 4,550,763,255.13/78,056.53
  6. Step 6: Final answer
    x = 58,300.87

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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.