Home / 56,125.36-77,457.72-30,980.08

Finding the Fourth Proportional to 56,125.36, 77,457.72 and 30,980.08

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Solution

The fourth proportional to 56,125.36, 77,457.72 and 30,980.08 is: 42,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,125.36 : 77,457.72 = 30,980.08 : x
  2. Step 2: Convert to fraction form
    56,125.36/77,457.72 = 30,980.08/x
  3. Step 3: Cross multiply
    56,125.36x = 77,457.72 × 30,980.08
  4. Step 4: Simplify right side
    56,125.36x = 2,399,646,362.22
  5. Step 5: Solve for x
    x = 2,399,646,362.22/56,125.36
  6. Step 6: Final answer
    x = 42,755.12

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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.