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Finding the Fourth Proportional to 56,953.75, 85,430.76 and 15,400.75

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Solution

The fourth proportional to 56,953.75, 85,430.76 and 15,400.75 is: 23,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,953.75 : 85,430.76 = 15,400.75 : x
  2. Step 2: Convert to fraction form
    56,953.75/85,430.76 = 15,400.75/x
  3. Step 3: Cross multiply
    56,953.75x = 85,430.76 × 15,400.75
  4. Step 4: Simplify right side
    56,953.75x = 1,315,697,777.07
  5. Step 5: Solve for x
    x = 1,315,697,777.07/56,953.75
  6. Step 6: Final answer
    x = 23,101.16

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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.