Home / 63,731.21-87,896.75-56,566.35

Finding the Fourth Proportional to 63,731.21, 87,896.75 and 56,566.35

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Solution

The fourth proportional to 63,731.21, 87,896.75 and 56,566.35 is: 78,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,731.21 : 87,896.75 = 56,566.35 : x
  2. Step 2: Convert to fraction form
    63,731.21/87,896.75 = 56,566.35/x
  3. Step 3: Cross multiply
    63,731.21x = 87,896.75 × 56,566.35
  4. Step 4: Simplify right side
    63,731.21x = 4,971,998,041.53
  5. Step 5: Solve for x
    x = 4,971,998,041.53/63,731.21
  6. Step 6: Final answer
    x = 78,015.13

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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.