Home / 72,746.51-100,382.02-40,914.72

Finding the Fourth Proportional to 72,746.51, 100,382.02 and 40,914.72

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Solution

The fourth proportional to 72,746.51, 100,382.02 and 40,914.72 is: 56,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,746.51 : 100,382.02 = 40,914.72 : x
  2. Step 2: Convert to fraction form
    72,746.51/100,382.02 = 40,914.72/x
  3. Step 3: Cross multiply
    72,746.51x = 100,382.02 × 40,914.72
  4. Step 4: Simplify right side
    72,746.51x = 4,107,102,139.05
  5. Step 5: Solve for x
    x = 4,107,102,139.05/72,746.51
  6. Step 6: Final answer
    x = 56,457.72

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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.