Home / 78,897.42-118,352.27-26,306.87

Finding the Fourth Proportional to 78,897.42, 118,352.27 and 26,306.87

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Solution

The fourth proportional to 78,897.42, 118,352.27 and 26,306.87 is: 39,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.42 : 118,352.27 = 26,306.87 : x
  2. Step 2: Convert to fraction form
    78,897.42/118,352.27 = 26,306.87/x
  3. Step 3: Cross multiply
    78,897.42x = 118,352.27 × 26,306.87
  4. Step 4: Simplify right side
    78,897.42x = 3,113,477,057.80
  5. Step 5: Solve for x
    x = 3,113,477,057.80/78,897.42
  6. Step 6: Final answer
    x = 39,462.34

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1.5x scale

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.