Home / 74,572.09-102,911.65-40,582.77

Finding the Fourth Proportional to 74,572.09, 102,911.65 and 40,582.77

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Solution

The fourth proportional to 74,572.09, 102,911.65 and 40,582.77 is: 56,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.09 : 102,911.65 = 40,582.77 : x
  2. Step 2: Convert to fraction form
    74,572.09/102,911.65 = 40,582.77/x
  3. Step 3: Cross multiply
    74,572.09x = 102,911.65 × 40,582.77
  4. Step 4: Simplify right side
    74,572.09x = 4,176,439,720.81
  5. Step 5: Solve for x
    x = 4,176,439,720.81/74,572.09
  6. Step 6: Final answer
    x = 56,005.40

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1.5x scale

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.