Home / 85,870.09-118,501.95-51,873.86

Finding the Fourth Proportional to 85,870.09, 118,501.95 and 51,873.86

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Solution

The fourth proportional to 85,870.09, 118,501.95 and 51,873.86 is: 71,586.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,870.09 : 118,501.95 = 51,873.86 : x
  2. Step 2: Convert to fraction form
    85,870.09/118,501.95 = 51,873.86/x
  3. Step 3: Cross multiply
    85,870.09x = 118,501.95 × 51,873.86
  4. Step 4: Simplify right side
    85,870.09x = 6,147,153,564.03
  5. Step 5: Solve for x
    x = 6,147,153,564.03/85,870.09
  6. Step 6: Final answer
    x = 71,586.67

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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.