Home / 56,920.08-78,547.80-31,426.02

Finding the Fourth Proportional to 56,920.08, 78,547.80 and 31,426.02

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Solution

The fourth proportional to 56,920.08, 78,547.80 and 31,426.02 is: 43,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.08 : 78,547.80 = 31,426.02 : x
  2. Step 2: Convert to fraction form
    56,920.08/78,547.80 = 31,426.02/x
  3. Step 3: Cross multiply
    56,920.08x = 78,547.80 × 31,426.02
  4. Step 4: Simplify right side
    56,920.08x = 2,468,444,733.76
  5. Step 5: Solve for x
    x = 2,468,444,733.76/56,920.08
  6. Step 6: Final answer
    x = 43,366.85

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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.