Home / 56,221.36-77,582.96-31,070.32

Finding the Fourth Proportional to 56,221.36, 77,582.96 and 31,070.32

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Solution

The fourth proportional to 56,221.36, 77,582.96 and 31,070.32 is: 42,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.36 : 77,582.96 = 31,070.32 : x
  2. Step 2: Convert to fraction form
    56,221.36/77,582.96 = 31,070.32/x
  3. Step 3: Cross multiply
    56,221.36x = 77,582.96 × 31,070.32
  4. Step 4: Simplify right side
    56,221.36x = 2,410,527,393.75
  5. Step 5: Solve for x
    x = 2,410,527,393.75/56,221.36
  6. Step 6: Final answer
    x = 42,875.65

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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.