Home / 56,013.48-77,298.12-30,862.80

Finding the Fourth Proportional to 56,013.48, 77,298.12 and 30,862.80

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Solution

The fourth proportional to 56,013.48, 77,298.12 and 30,862.80 is: 42,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,013.48 : 77,298.12 = 30,862.80 : x
  2. Step 2: Convert to fraction form
    56,013.48/77,298.12 = 30,862.80/x
  3. Step 3: Cross multiply
    56,013.48x = 77,298.12 × 30,862.80
  4. Step 4: Simplify right side
    56,013.48x = 2,385,636,417.94
  5. Step 5: Solve for x
    x = 2,385,636,417.94/56,013.48
  6. Step 6: Final answer
    x = 42,590.40

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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.