Home / 42,728.76-64,088.10-26,887.05

Finding the Fourth Proportional to 42,728.76, 64,088.10 and 26,887.05

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Solution

The fourth proportional to 42,728.76, 64,088.10 and 26,887.05 is: 40,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,728.76 : 64,088.10 = 26,887.05 : x
  2. Step 2: Convert to fraction form
    42,728.76/64,088.10 = 26,887.05/x
  3. Step 3: Cross multiply
    42,728.76x = 64,088.10 × 26,887.05
  4. Step 4: Simplify right side
    42,728.76x = 1,723,139,949.11
  5. Step 5: Solve for x
    x = 1,723,139,949.11/42,728.76
  6. Step 6: Final answer
    x = 40,327.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.