Home / 91,139.60-136,462.36-47,271.44

Finding the Fourth Proportional to 91,139.60, 136,462.36 and 47,271.44

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Solution

The fourth proportional to 91,139.60, 136,462.36 and 47,271.44 is: 70,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,139.60 : 136,462.36 = 47,271.44 : x
  2. Step 2: Convert to fraction form
    91,139.60/136,462.36 = 47,271.44/x
  3. Step 3: Cross multiply
    91,139.60x = 136,462.36 × 47,271.44
  4. Step 4: Simplify right side
    91,139.60x = 6,450,772,263.00
  5. Step 5: Solve for x
    x = 6,450,772,263.00/91,139.60
  6. Step 6: Final answer
    x = 70,779.03

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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.