Home / 56,918.23-78,547.03-31,767.73

Finding the Fourth Proportional to 56,918.23, 78,547.03 and 31,767.73

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Solution

The fourth proportional to 56,918.23, 78,547.03 and 31,767.73 is: 43,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.23 : 78,547.03 = 31,767.73 : x
  2. Step 2: Convert to fraction form
    56,918.23/78,547.03 = 31,767.73/x
  3. Step 3: Cross multiply
    56,918.23x = 78,547.03 × 31,767.73
  4. Step 4: Simplify right side
    56,918.23x = 2,495,260,841.34
  5. Step 5: Solve for x
    x = 2,495,260,841.34/56,918.23
  6. Step 6: Final answer
    x = 43,839.40

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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.