Home / 56,386.79-84,547.37-21,329.18

Finding the Fourth Proportional to 56,386.79, 84,547.37 and 21,329.18

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Solution

The fourth proportional to 56,386.79, 84,547.37 and 21,329.18 is: 31,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.79 : 84,547.37 = 21,329.18 : x
  2. Step 2: Convert to fraction form
    56,386.79/84,547.37 = 21,329.18/x
  3. Step 3: Cross multiply
    56,386.79x = 84,547.37 × 21,329.18
  4. Step 4: Simplify right side
    56,386.79x = 1,803,325,543.87
  5. Step 5: Solve for x
    x = 1,803,325,543.87/56,386.79
  6. Step 6: Final answer
    x = 31,981.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.