Home / 72,037.08-99,407.52-40,210.56

Finding the Fourth Proportional to 72,037.08, 99,407.52 and 40,210.56

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Solution

The fourth proportional to 72,037.08, 99,407.52 and 40,210.56 is: 55,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037.08 : 99,407.52 = 40,210.56 : x
  2. Step 2: Convert to fraction form
    72,037.08/99,407.52 = 40,210.56/x
  3. Step 3: Cross multiply
    72,037.08x = 99,407.52 × 40,210.56
  4. Step 4: Simplify right side
    72,037.08x = 3,997,232,047.41
  5. Step 5: Solve for x
    x = 3,997,232,047.41/72,037.08
  6. Step 6: Final answer
    x = 55,488.54

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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.