Home / 63,718.32-87,909.38-39,510.56

Finding the Fourth Proportional to 63,718.32, 87,909.38 and 39,510.56

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Solution

The fourth proportional to 63,718.32, 87,909.38 and 39,510.56 is: 54,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,718.32 : 87,909.38 = 39,510.56 : x
  2. Step 2: Convert to fraction form
    63,718.32/87,909.38 = 39,510.56/x
  3. Step 3: Cross multiply
    63,718.32x = 87,909.38 × 39,510.56
  4. Step 4: Simplify right side
    63,718.32x = 3,473,349,151.60
  5. Step 5: Solve for x
    x = 3,473,349,151.60/63,718.32
  6. Step 6: Final answer
    x = 54,511.00

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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.