Home / 75,709.08-104,410.62-47,417.40

Finding the Fourth Proportional to 75,709.08, 104,410.62 and 47,417.40

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Solution

The fourth proportional to 75,709.08, 104,410.62 and 47,417.40 is: 65,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.08 : 104,410.62 = 47,417.40 : x
  2. Step 2: Convert to fraction form
    75,709.08/104,410.62 = 47,417.40/x
  3. Step 3: Cross multiply
    75,709.08x = 104,410.62 × 47,417.40
  4. Step 4: Simplify right side
    75,709.08x = 4,950,880,132.79
  5. Step 5: Solve for x
    x = 4,950,880,132.79/75,709.08
  6. Step 6: Final answer
    x = 65,393.48

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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.