Home / 75,812.16-104,621.60-42,278.72

Finding the Fourth Proportional to 75,812.16, 104,621.60 and 42,278.72

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Solution

The fourth proportional to 75,812.16, 104,621.60 and 42,278.72 is: 58,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,812.16 : 104,621.60 = 42,278.72 : x
  2. Step 2: Convert to fraction form
    75,812.16/104,621.60 = 42,278.72/x
  3. Step 3: Cross multiply
    75,812.16x = 104,621.60 × 42,278.72
  4. Step 4: Simplify right side
    75,812.16x = 4,423,267,332.35
  5. Step 5: Solve for x
    x = 4,423,267,332.35/75,812.16
  6. Step 6: Final answer
    x = 58,345.09

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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.