Home / 55,897.40-77,134.20-30,748.52

Finding the Fourth Proportional to 55,897.40, 77,134.20 and 30,748.52

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Solution

The fourth proportional to 55,897.40, 77,134.20 and 30,748.52 is: 42,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,897.40 : 77,134.20 = 30,748.52 : x
  2. Step 2: Convert to fraction form
    55,897.40/77,134.20 = 30,748.52/x
  3. Step 3: Cross multiply
    55,897.40x = 77,134.20 × 30,748.52
  4. Step 4: Simplify right side
    55,897.40x = 2,371,762,491.38
  5. Step 5: Solve for x
    x = 2,371,762,491.38/55,897.40
  6. Step 6: Final answer
    x = 42,430.64

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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.