Home / 56,507.08-77,980.98-31,358.92

Finding the Fourth Proportional to 56,507.08, 77,980.98 and 31,358.92

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Solution

The fourth proportional to 56,507.08, 77,980.98 and 31,358.92 is: 43,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,507.08 : 77,980.98 = 31,358.92 : x
  2. Step 2: Convert to fraction form
    56,507.08/77,980.98 = 31,358.92/x
  3. Step 3: Cross multiply
    56,507.08x = 77,980.98 × 31,358.92
  4. Step 4: Simplify right side
    56,507.08x = 2,445,399,313.34
  5. Step 5: Solve for x
    x = 2,445,399,313.34/56,507.08
  6. Step 6: Final answer
    x = 43,275.98

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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.