Home / 53,123.60-79,688.28-19,852.40

Finding the Fourth Proportional to 53,123.60, 79,688.28 and 19,852.40

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Solution

The fourth proportional to 53,123.60, 79,688.28 and 19,852.40 is: 29,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,123.60 : 79,688.28 = 19,852.40 : x
  2. Step 2: Convert to fraction form
    53,123.60/79,688.28 = 19,852.40/x
  3. Step 3: Cross multiply
    53,123.60x = 79,688.28 × 19,852.40
  4. Step 4: Simplify right side
    53,123.60x = 1,582,003,609.87
  5. Step 5: Solve for x
    x = 1,582,003,609.87/53,123.60
  6. Step 6: Final answer
    x = 29,779.68

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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.