Home / 63,520.32-87,618-40,888.88

Finding the Fourth Proportional to 63,520.32, 87,618 and 40,888.88

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Solution

The fourth proportional to 63,520.32, 87,618 and 40,888.88 is: 56,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,520.32 : 87,618 = 40,888.88 : x
  2. Step 2: Convert to fraction form
    63,520.32/87,618 = 40,888.88/x
  3. Step 3: Cross multiply
    63,520.32x = 87,618 × 40,888.88
  4. Step 4: Simplify right side
    63,520.32x = 3,582,601,887.84
  5. Step 5: Solve for x
    x = 3,582,601,887.84/63,520.32
  6. Step 6: Final answer
    x = 56,400.88

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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.