Home / 55,595.76-83,402.28-18,668.40

Finding the Fourth Proportional to 55,595.76, 83,402.28 and 18,668.40

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Solution

The fourth proportional to 55,595.76, 83,402.28 and 18,668.40 is: 28,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,595.76 : 83,402.28 = 18,668.40 : x
  2. Step 2: Convert to fraction form
    55,595.76/83,402.28 = 18,668.40/x
  3. Step 3: Cross multiply
    55,595.76x = 83,402.28 × 18,668.40
  4. Step 4: Simplify right side
    55,595.76x = 1,556,987,123.95
  5. Step 5: Solve for x
    x = 1,556,987,123.95/55,595.76
  6. Step 6: Final answer
    x = 28,005.50

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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.