Home / 85,055.90-127,438.04-60,051.20

Finding the Fourth Proportional to 85,055.90, 127,438.04 and 60,051.20

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Solution

The fourth proportional to 85,055.90, 127,438.04 and 60,051.20 is: 89,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,055.90 : 127,438.04 = 60,051.20 : x
  2. Step 2: Convert to fraction form
    85,055.90/127,438.04 = 60,051.20/x
  3. Step 3: Cross multiply
    85,055.90x = 127,438.04 × 60,051.20
  4. Step 4: Simplify right side
    85,055.90x = 7,652,806,740.59
  5. Step 5: Solve for x
    x = 7,652,806,740.59/85,055.90
  6. Step 6: Final answer
    x = 89,973.85

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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.