Home / 56,402.48-77,832.06-30,903.76

Finding the Fourth Proportional to 56,402.48, 77,832.06 and 30,903.76

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Solution

The fourth proportional to 56,402.48, 77,832.06 and 30,903.76 is: 42,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,402.48 : 77,832.06 = 30,903.76 : x
  2. Step 2: Convert to fraction form
    56,402.48/77,832.06 = 30,903.76/x
  3. Step 3: Cross multiply
    56,402.48x = 77,832.06 × 30,903.76
  4. Step 4: Simplify right side
    56,402.48x = 2,405,303,302.55
  5. Step 5: Solve for x
    x = 2,405,303,302.55/56,402.48
  6. Step 6: Final answer
    x = 42,645.35

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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.