Home / 86,210.53-118,971.59-48,484.78

Finding the Fourth Proportional to 86,210.53, 118,971.59 and 48,484.78

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Solution

The fourth proportional to 86,210.53, 118,971.59 and 48,484.78 is: 66,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210.53 : 118,971.59 = 48,484.78 : x
  2. Step 2: Convert to fraction form
    86,210.53/118,971.59 = 48,484.78/x
  3. Step 3: Cross multiply
    86,210.53x = 118,971.59 × 48,484.78
  4. Step 4: Simplify right side
    86,210.53x = 5,768,310,827.55
  5. Step 5: Solve for x
    x = 5,768,310,827.55/86,210.53
  6. Step 6: Final answer
    x = 66,909.59

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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.