Home / 52,402.86-72,178.20-40,280.16

Finding the Fourth Proportional to 52,402.86, 72,178.20 and 40,280.16

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Solution

The fourth proportional to 52,402.86, 72,178.20 and 40,280.16 is: 55,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,402.86 : 72,178.20 = 40,280.16 : x
  2. Step 2: Convert to fraction form
    52,402.86/72,178.20 = 40,280.16/x
  3. Step 3: Cross multiply
    52,402.86x = 72,178.20 × 40,280.16
  4. Step 4: Simplify right side
    52,402.86x = 2,907,349,444.51
  5. Step 5: Solve for x
    x = 2,907,349,444.51/52,402.86
  6. Step 6: Final answer
    x = 55,480.74

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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.