Home / 105,577.64-145,697.18-57,832.70

Finding the Fourth Proportional to 105,577.64, 145,697.18 and 57,832.70

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Solution

The fourth proportional to 105,577.64, 145,697.18 and 57,832.70 is: 79,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,577.64 : 145,697.18 = 57,832.70 : x
  2. Step 2: Convert to fraction form
    105,577.64/145,697.18 = 57,832.70/x
  3. Step 3: Cross multiply
    105,577.64x = 145,697.18 × 57,832.70
  4. Step 4: Simplify right side
    105,577.64x = 8,426,061,301.79
  5. Step 5: Solve for x
    x = 8,426,061,301.79/105,577.64
  6. Step 6: Final answer
    x = 79,809.15

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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.