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Finding the Fourth Proportional to 101,001.81, 139,390.80 and 55,683.93

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Solution

The fourth proportional to 101,001.81, 139,390.80 and 55,683.93 is: 76,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,001.81 : 139,390.80 = 55,683.93 : x
  2. Step 2: Convert to fraction form
    101,001.81/139,390.80 = 55,683.93/x
  3. Step 3: Cross multiply
    101,001.81x = 139,390.80 × 55,683.93
  4. Step 4: Simplify right side
    101,001.81x = 7,761,827,549.84
  5. Step 5: Solve for x
    x = 7,761,827,549.84/101,001.81
  6. Step 6: Final answer
    x = 76,848.40

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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.