Home / 57,155.16-78,901.47-38,066.70

Finding the Fourth Proportional to 57,155.16, 78,901.47 and 38,066.70

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Solution

The fourth proportional to 57,155.16, 78,901.47 and 38,066.70 is: 52,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,155.16 : 78,901.47 = 38,066.70 : x
  2. Step 2: Convert to fraction form
    57,155.16/78,901.47 = 38,066.70/x
  3. Step 3: Cross multiply
    57,155.16x = 78,901.47 × 38,066.70
  4. Step 4: Simplify right side
    57,155.16x = 3,003,518,588.05
  5. Step 5: Solve for x
    x = 3,003,518,588.05/57,155.16
  6. Step 6: Final answer
    x = 52,550.26

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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.