Home / 55,386.49-76,430.68-31,510.93

Finding the Fourth Proportional to 55,386.49, 76,430.68 and 31,510.93

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Solution

The fourth proportional to 55,386.49, 76,430.68 and 31,510.93 is: 43,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386.49 : 76,430.68 = 31,510.93 : x
  2. Step 2: Convert to fraction form
    55,386.49/76,430.68 = 31,510.93/x
  3. Step 3: Cross multiply
    55,386.49x = 76,430.68 × 31,510.93
  4. Step 4: Simplify right side
    55,386.49x = 2,408,401,807.33
  5. Step 5: Solve for x
    x = 2,408,401,807.33/55,386.49
  6. Step 6: Final answer
    x = 43,483.56

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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.