Home / 85,547.16-128,349.36-48,180.42

Finding the Fourth Proportional to 85,547.16, 128,349.36 and 48,180.42

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Solution

The fourth proportional to 85,547.16, 128,349.36 and 48,180.42 is: 72,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547.16 : 128,349.36 = 48,180.42 : x
  2. Step 2: Convert to fraction form
    85,547.16/128,349.36 = 48,180.42/x
  3. Step 3: Cross multiply
    85,547.16x = 128,349.36 × 48,180.42
  4. Step 4: Simplify right side
    85,547.16x = 6,183,926,071.53
  5. Step 5: Solve for x
    x = 6,183,926,071.53/85,547.16
  6. Step 6: Final answer
    x = 72,286.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.