Home / 89,971.02-124,164-51,742.98

Finding the Fourth Proportional to 89,971.02, 124,164 and 51,742.98

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Solution

The fourth proportional to 89,971.02, 124,164 and 51,742.98 is: 71,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,971.02 : 124,164 = 51,742.98 : x
  2. Step 2: Convert to fraction form
    89,971.02/124,164 = 51,742.98/x
  3. Step 3: Cross multiply
    89,971.02x = 124,164 × 51,742.98
  4. Step 4: Simplify right side
    89,971.02x = 6,424,615,368.72
  5. Step 5: Solve for x
    x = 6,424,615,368.72/89,971.02
  6. Step 6: Final answer
    x = 71,407.61

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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.