Home / 72,777.08-100,432.18-40,946.02

Finding the Fourth Proportional to 72,777.08, 100,432.18 and 40,946.02

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Solution

The fourth proportional to 72,777.08, 100,432.18 and 40,946.02 is: 56,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,777.08 : 100,432.18 = 40,946.02 : x
  2. Step 2: Convert to fraction form
    72,777.08/100,432.18 = 40,946.02/x
  3. Step 3: Cross multiply
    72,777.08x = 100,432.18 × 40,946.02
  4. Step 4: Simplify right side
    72,777.08x = 4,112,298,050.92
  5. Step 5: Solve for x
    x = 4,112,298,050.92/72,777.08
  6. Step 6: Final answer
    x = 56,505.40

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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.