Home / 52,618.12-72,618-28,748.38

Finding the Fourth Proportional to 52,618.12, 72,618 and 28,748.38

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Solution

The fourth proportional to 52,618.12, 72,618 and 28,748.38 is: 39,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,618.12 : 72,618 = 28,748.38 : x
  2. Step 2: Convert to fraction form
    52,618.12/72,618 = 28,748.38/x
  3. Step 3: Cross multiply
    52,618.12x = 72,618 × 28,748.38
  4. Step 4: Simplify right side
    52,618.12x = 2,087,649,858.84
  5. Step 5: Solve for x
    x = 2,087,649,858.84/52,618.12
  6. Step 6: Final answer
    x = 39,675.49

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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.