Home / 85,904.28-118,547.55-48,178.53

Finding the Fourth Proportional to 85,904.28, 118,547.55 and 48,178.53

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Solution

The fourth proportional to 85,904.28, 118,547.55 and 48,178.53 is: 66,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,904.28 : 118,547.55 = 48,178.53 : x
  2. Step 2: Convert to fraction form
    85,904.28/118,547.55 = 48,178.53/x
  3. Step 3: Cross multiply
    85,904.28x = 118,547.55 × 48,178.53
  4. Step 4: Simplify right side
    85,904.28x = 5,711,446,694.10
  5. Step 5: Solve for x
    x = 5,711,446,694.10/85,904.28
  6. Step 6: Final answer
    x = 66,486.17

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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.