Home / 64,870.85-89,519.74-38,031.23

Finding the Fourth Proportional to 64,870.85, 89,519.74 and 38,031.23

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Solution

The fourth proportional to 64,870.85, 89,519.74 and 38,031.23 is: 52,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,870.85 : 89,519.74 = 38,031.23 : x
  2. Step 2: Convert to fraction form
    64,870.85/89,519.74 = 38,031.23/x
  3. Step 3: Cross multiply
    64,870.85x = 89,519.74 × 38,031.23
  4. Step 4: Simplify right side
    64,870.85x = 3,404,545,950.20
  5. Step 5: Solve for x
    x = 3,404,545,950.20/64,870.85
  6. Step 6: Final answer
    x = 52,481.91

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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.